New York attorneys O’Brien, Timothy Patrick to O’Connell, Peter B.
By surname, as the register spells it
- Attorneys
- 300
- Register file
- Sep 29, 2026
300 living attorneys on the register file of Sep 29, 2026, part 3 of 23 of the O surnames. Each row is the register's record: the registration number, the year admitted, the status, the office and the employer. 60 link to a page of their own.
O’Brien, Timothy Patrick to O’Connell, Peter B.
| Attorney | Registration No. | Admitted | Status | Office | Employer | Law school |
|---|---|---|---|---|---|---|
| Timothy Patrick O’Brien | 2322931 | 1990 | Currently registered | Pasadena, CA | Timothy P Obrien Esq | Georgetown University Law Center |
| Timothy Ricardo O’Brien | 5865456 | 2021 | Currently registered | New York, NY | Otterbourg P.C. | Fordham University School of Law |
| Timothy Robert O’Brien | 3021847 | 2000 | Due to re‑register | Elmira, NY | Syracuse University College of Law | |
| Timothy Sean O’Brien | 4434601 | 2006 | Due to re‑register | Oak Park, IL | O’Brien Estate Law, LLC | University of Illinois Chicago School of Law (formerly John Marshall) |
| Vincent A. O’Brien | 2174712 | 1988 | Currently registered | London, United Kingdom | DMH Stalland | Brooklyn Law School |
| Vincent M. Obrien | 1398924 | 1974 | Currently registered | Fordham University School of Law | ||
| Wesley Michael O’Brien | 4376125 | 2006 | Due to re‑register | New York, NY | Fried, Frank, Harris, Shriver & Jacobson LLP | Brooklyn Law School |
| William Obrien | 1570654 | 1978 | Due to re‑register | Columbia Law School | ||
| William O’Brien | 2782373 | 1996 | Currently registered | Waccabuc, NY | William O’Brien | University of Pennsylvania Carey Law School |
| William Albert O’Brien | 5261136 | 2014 | Due to re‑register | Annapolis, MD | Bioenergy Devco, LLC | Seton Hall University School of Law |
| William E. O’Brien | 2924116 | 1998 | Resigned | University at Buffalo School of Law (SUNY) | ||
| William F. Obrien | 1376201 | 1973 | Due to re‑register | Georgetown University Law Center | ||
| William Francis Obrien | 1408319 | 1966 | Currently registered | Oak Bluffs, MA | William F Obrien | Syracuse University College of Law |
| William J. O’Brien III | 1554906 | 1970 | Currently registered | Yale Law School | ||
| William J. Obrien | 2105500 | 1987 | Currently registered | New York, NY | Paul Weiss Rifkind Wharton & Garrison | |
| William John O’Brien III | 2848497 | 1997 | Currently registered | New York, NY | Skadden, Arps, Slate, Meagher & Flom LLP | University of Virginia School of Law |
| William Joseph O’Brien | 1790997 | 1982 | Currently registered | St. John’s University School of Law | ||
| William Joseph O’Brien | 4244711 | 2004 | Currently registered | Philadelphia, PA | O’Brien Firm PC | Catholic University of America, Columbus School of Law |
| William Thomas O’Brien | 6163554 | 2024 | Due to re‑register | Washington, DC | Eversheds Sutherland (Us) LLP | Catholic University of America, Columbus School of Law |
| Dawn Lori O’Brien-Gans | 4184560 | 2004 | Due to re‑register | New York, NY | Lawyers for Children, Inc. | New York Law School |
| Kathleen Marie O’Brien-Nejame | 4199899 | 2004 | Currently registered | Albany, NY | Nyserda | Syracuse University College of Law |
| Elizabeth Mary O’Brien Totten | 3983368 | 2001 | Delinquent | New York Law School | ||
| Tara Ann O’Brien Wu | 4107322 | 2003 | Currently registered | Columbus, OH | Elevance Health | Georgetown University Law Center |
| Charles Elliott O’Bryan | 1637248 | 1979 | Currently registered | New York, NY | Cornell Law School | |
| Eric Michael O’Bryan | 5651211 | 2019 | Currently registered | Albany, NY | Bond, Schoeneck & King | Albany Law School |
| Jill Ellen O’Bryan | 6095525 | 2024 | Due to re‑register | Washington University in St. Louis School of Law | ||
| Joseph Michael O’Bryan | 6155873 | 2024 | Currently registered | Troy, NY | Fowler Doyle Spiess PLLC | University at Buffalo School of Law (SUNY) |
| Rachael Lee O’Bryan | 5552328 | 2017 | Currently registered | New York, NY | Hecker Fink LLP | American University Washington College of Law |
| Sabrina Danielle Obryan | 5690565 | 2019 | Currently registered | Chicago, IL | U.S. Department of Homeland Security- Uscis - Raio | New York Law School |
| Sean Christopher O’Bryan | 5927363 | 2022 | Currently registered | New York, NY | Greenberg Traurig, LLP | New York University School of Law |
| Thomas E. Obryan | 2159598 | 1988 | Disbarred | Syracuse University College of Law | ||
| Trevor Henry O’Bryan | 5894506 | 2021 | Currently registered | New York, NY | Cooley LLP | Cornell Law School |
| Jacqueline O’Bryant | 5165048 | 2013 | Currently registered | Maurice A. Deane School of Law at Hofstra University | ||
| Karolina Barbara Obrycki | 5992151 | 2023 | Currently registered | Kew Gardens, NY | Zelenitz, Shapiro &D Agostino P.C. | Fordham University School of Law |
| Anthony K. Obst | 1218825 | 1976 | Currently registered | Columbia Law School | ||
| Christopher John Obstarczyk | 3931706 | 2001 | Currently registered | Saratoga Springs, NY | Nys Supreme Court Justice | Albany Law School |
| Patricia A. Obstarczyk | 2020303 | 1986 | Currently registered | University at Buffalo School of Law (SUNY) | ||
| Merilee Obstbaum | 1710995 | 1981 | Currently registered | Leonia, NJ | Merilee Obstbaum Esq | Rutgers Law School |
| Harold B. Obstfeld | 1538156 | 1971 | Delinquent | Jamaica, NY | Harold B. Obstfeld P,C, | Harvard Law School |
| Jason V. Obten | 3068061 | 2000 | Disbarred | Brooklyn Law School | ||
| Hitoshi Obu | 3059417 | 2000 | Currently registered | Tokyo, Japan | Japan Process Development Co’ltd | University of Illinois College of Law |
| Richard Obuch | 2522860 | 1993 | Delinquent | Union, NJ | Richard Obuch, Esq. | New York Law School |
| Michael N Obuchi | 6000301 | 2023 | Currently registered | Farmington, CT | Symetra Investment Management | University of California, Berkeley, School of Law |
| Joseph Frederick Obuchowski | 1587104 | 1973 | Suspended, delinquent | Burlington, VT | Joseph F. Obuchowski Esq. | Columbia Law School |
| Donal Ambrose O’Buckley | 2939759 | 1999 | Currently registered | Flushing, NY | Donal O’Buckley P.C. | New York Law School |
| Jennifer Helene Obus | 5477336 | 2017 | Currently registered | New York, NY | American Museum of Natural History | Duke University School of Law |
| Leslie Jennis Obus | 1304468 | 1978 | Currently registered | Rutgers Law School | ||
| Michael J. Obus | 1282821 | 1974 | Currently registered | New York, NY | N.Y. State Supreme Court | Columbia Law School |
| Steven Edward Obus | 1110055 | 1974 | Currently registered | New York, NY | Proskauer Rose LLP | Columbia Law School |
| Barry Obut | 1926161 | 1984 | Currently registered | Teaneck, NJ | Barry Obut | Fordham University School of Law |
| Ana Maria O’Byrne | 2778298 | 1996 | Currently registered | Fort White, FL | Syracuse University College of Law | |
| Charles John O’Byrne | 2220986 | 1988 | Due to re‑register | New York, NY | Executive Vice President for Policy | Columbia Law School |
| Deidre G. O’Byrne | 2914596 | 1998 | Currently registered | Salem, NH | Beacon Trust Company | Columbia Law School |
| Joan Alice De R. O’Byrne | 1357672 | 1969 | Currently registered | Rochester, NY | Joan de R. O’Byrne | |
| John Daniel O’Byrne | 2463073 | 1992 | Currently registered | New Rochelle, NY | The O’Byrne Law Firm, LLC | Fordham University School of Law |
| Megan Kelly O’Byrne | 4829008 | 2010 | Currently registered | Denver, CO | Ogborn Mihm LLP | American University Washington College of Law |
| Patricia Gerarda O’Byrne | 2777340 | 1996 | Currently registered | Sleepy Hollow, NY | Regeneron Pharmaceuticals, Inc. | New York University School of Law |
| Patrick C. O’Byrne | 3016078 | 2000 | Suspended, delinquent | Newark, NJ | Gibbons, del Deo, Dolan, Griffinger & Vecchione, P.C. | Seton Hall University School of Law |
| Rosemary McGuirk O’Byrne | 5776638 | 2020 | Due to re‑register | New York, NY | Cohen Liuzzo PLLC | William & Mary Law School |
| Sylvester Gerard O’Byrne | 2757292 | 1997 | Currently registered | Dublin, Ireland | Sylvester O’ Byrne | University of Galway School of Law |
| Whitney Rose O’Byrne | 5108626 | 2013 | Currently registered | Los Angeles, CA | Morrison & Foerster LLP | Columbia Law School |
| William Obyrne | 2919934 | 1998 | Currently registered | University of Texas School of Law | ||
| Sadettin Ocak | 4910022 | 2011 | Currently registered | SMU Dedman School of Law | ||
| Amy Carmel O’Callaghan | 5422449 | 2016 | Due to re‑register | |||
| Brendan Donal O’Callaghan | 5623731 | 2018 | Currently registered | Washington, DC | Department of Justice, United States Attorney’s Office for the District of Columbia | George Washington University Law School |
| Cliodhna Marie O’Callaghan | 4337143 | 2005 | Currently registered | |||
| Daniel Joseph Ocallaghan | 1673839 | 1976 | Currently registered | New York, NY | Daniel J. O’Callaghan Esq. | Loyola University New Orleans College of Law |
| David John O’Callaghan | 2901437 | 1998 | Currently registered | Melbourne Vic, Australia | Federal Court of Australia | Melbourne Law School, University of Melbourne |
| Deirdre May O’Callaghan | 4755369 | 2009 | Currently registered | Columbia Law School | ||
| Edward Casey O’Callaghan | 2676450 | 1995 | Currently registered | Washington, DC | Cahill Gordon & Reindel LLP | New York University School of Law |
| Erin Margaret O’Callaghan | 4510756 | 2007 | Currently registered | New York, NY | Blackstone | New York Law School |
| Jane Marie O’Callaghan | 2649978 | 1995 | Currently registered | Uniondale, NY | Congdon Flaherty O’Callaghan Reid Etc. | St. John’s University School of Law |
| John Alexander O’Callaghan | 4666699 | 2009 | Currently registered | New York, NY | Mudrick Capital Management | Brooklyn Law School |
| Lauri O’Callaghan | 5965363 | 2022 | Currently registered | New York, NY | Rooney Law | University College Cork School of Law |
| Michael Patrick O’Callaghan | 2606655 | 1994 | Currently registered | New York, NY | Finback, Inc. | Fordham University School of Law |
| Oisin O’Callaghan | 5608914 | 2018 | Due to re‑register | New York, NY | Fivetran Inc | Duke University School of Law |
| Patricia A. O’Callaghan | 2552552 | 1993 | Currently registered | Rye, NY | Elisabeth Haub School of Law at Pace University | |
| Susan Anamier O’Callaghan | 5009030 | 2012 | Currently registered | Boston, MA | New England Law Boston | |
| Cristin Jane O’Callahan | 3056454 | 2000 | Currently registered | Duarte, CA | City of Hope, Legal Department | Columbia Law School |
| John Kevin Ocallahan | 1247618 | 1961 | Due to re‑register | St. John’s University School of Law | ||
| Mary A. O’Callahan | 2469450 | 1992 | Currently registered | Bronxville, NY | Mary A. Ocallahan Esq. | St. John’s University School of Law |
| Daniel Eduardo R. Ocampo | 6114078 | 2024 | Due to re‑register | Yale Law School | ||
| Julio Ocampo | 3018256 | 2000 | Currently registered | Orlando, FL | Social Security Administration | St. John’s University School of Law |
| Katie Lynn Ocampo | 5363064 | 2015 | Currently registered | Indianapolis, IN | Army Dfas Attn Dfasin/Jarea | William & Mary Law School |
| Nicolas Edward Ocampo | 5695697 | 2019 | Currently registered | Miami, FL | Dufry America LLC | Columbia Law School |
| Victor Daniel Ocampo | 2565570 | 1993 | Currently registered | New York, NY | Law Office of Victor D. Ocampo | University of Pennsylvania Carey Law School |
| Johanna Christina Ocana | 5439427 | 2016 | Currently registered | Bronx, NY | Legal Aid Society | CUNY School of Law |
| Desmond Gerard O’Carroll | 4410130 | 2006 | Currently registered | University College Dublin Sutherland School of Law | ||
| Donall Gerard O’Carroll | 4395380 | 2006 | Currently registered | Buffalo, NY | Cannon Design | Stetson University College of Law |
| Ronan Patrick O’Carroll | 4858775 | 2010 | Suspended, delinquent | Trinity College Dublin School of Law | ||
| Christopher Ocasal | 2714962 | 1995 | Currently registered | Washington, DC | Ernst & Young | George Washington University Law School |
| Molly Brigid O’Casey | 5873898 | 2021 | Currently registered | Washington, DC, DC | Holland & Knight | Cornell Law School |
| Alejandro Victor Ocasio | 6135842 | 2024 | Currently registered | Buffalo, NY | Erie County District Attorney’s Office | University at Buffalo School of Law (SUNY) |
| Antonio Miguel Ocasio | 2799336 | 1997 | Currently registered | New York, NY | Aragon Partners LLP | Columbia Law School |
| Darrin M. Ocasio | 4156311 | 2003 | Currently registered | New York, NY | Sichenzia Ross Ference Carmel LLP | New York Law School |
| David Salvador Ocasio | 4461000 | 2006 | Currently registered | Kew Gardens, NY | Legal Aid Society of New York | Temple University Beasley School of Law |
| Denise Christine Ocasio | 3909843 | 2001 | Currently registered | Paramus, NJ | Milvidskiy Law Group, PC | Fordham University School of Law |
| George Anthony Ocasio | 5597406 | 2018 | Due to re‑register | Bronx, NY | Bronx County Family Court | Syracuse University College of Law |
| Lia Ocasio | 5355888 | 2015 | Currently registered | Suffield, CT | Asista Immigration Assistance | University of Wisconsin Law School |
| Myrna Ocasio | 2149540 | 1987 | Currently registered | Fort Lauderdale, FL | Myrna Ocasio, Esq. | Rutgers Law School |
| Sandro Geremias Ocasio | 4710141 | 2009 | Suspended, delinquent | Seton Hall University School of Law | ||
| Maria Del Pilar Ocasio-Douglas | 2498905 | 1992 | Due to re‑register | New York, NY | Law Office of Maria del Pilar Ocasio-Douglas, PC | New York Law School |
| Jeremiah Ocasio-Silva | 5971312 | 2022 | Due to re‑register | San Juan, PR | Jos Law Office | American University Washington College of Law |
| Domhnall Muiris O’Cathain | 4424958 | 2006 | Due to re‑register | New York, NY | O’Cathain Law Group LLC. | Rutgers Law School |
| Francesca Madeline O’Cathain | 4333647 | 2005 | Suspended, delinquent | Hackensack, NJ | Lesnevich & Marzano Lesnevich | University of Connecticut School of Law |
| Richard A. Occhetti | 1047414 | 1970 | Currently registered | New York University School of Law | ||
| Michael Joseph Occhicone | 5809025 | 2020 | Currently registered | Port Chester, NY | Maurice A. Deane School of Law at Hofstra University | |
| Lorraine Occhini | 2562445 | 1993 | Currently registered | Brooklyn Law School | ||
| Andy Occhino | 1935980 | 1984 | Currently registered | Elmsford, NY | World Business Lenders | Fordham University School of Law |
| Christine Elizabeth Occhiogrosso | 5851019 | 2021 | Currently registered | Central Islip, NY | Suffolk County District Attorney | Elisabeth Haub School of Law at Pace University |
| Frank John Occhiogrosso | 2757391 | 1996 | Currently registered | Westbury, NY | Frank John Occhiogrosso | St. John’s University School of Law |
| Jean Alexandra Occhiogrosso | 5307046 | 2015 | Currently registered | New York, NY | Vedder Price | Elisabeth Haub School of Law at Pace University |
| John Francis Occhiogrosso | 5158621 | 2013 | Currently registered | New York, NY | Segan, Nemerov, Singer & Sonin, PC | Brooklyn Law School |
| Paul Frank Occhiogrosso | 2230787 | 1989 | Currently registered | New York, NY | The City College of New York | Columbia Law School |
| Robyn E. Occhiogrosso | 2033124 | 1986 | Currently registered | New York University School of Law | ||
| Scott Charles Occhiogrosso | 3057957 | 2000 | Due to re‑register | New York, NY | Block Otoole and Murphy | Fordham University School of Law |
| Joshua Paul Occhiogrosso-Schwartz | 5585179 | 2018 | Currently registered | New Orleans, LA | The Wren Collective | New York University School of Law |
| Anna Occhipinti | 5867817 | 2021 | Currently registered | New York, NY | New York University School of Law | |
| Frank S. Occhipinti | 2067023 | 1986 | Currently registered | New York, NY | Lynn Occhipinti, LLP | Fordham University School of Law |
| John Anthony Occhipinti | 1680230 | 1980 | Currently registered | Fordham University School of Law | ||
| Stephen Frank Occhipinti | 6169775 | 2024 | Currently registered | New York Law School | ||
| Barbara Occhiuzzi | 4092383 | 2002 | Suspended, delinquent | Columbia Law School | ||
| Leslie Lloyd Mullings Ocean | 5749775 | 2020 | Currently registered | Providence, RI | Boston College Law School | |
| Frank Olaf Och | 4349296 | 2005 | Currently registered | University of San Diego School of Law | ||
| Donald Michael Ochacher | 1228287 | 1961 | Delinquent | Woodland Hills, CA | Donald M Ochacher | New York University School of Law |
| Perry Myles Ochacher | 2276871 | 1989 | Currently registered | Rye Brook, NY | Willett Public Affairs LLC | Georgetown University Law Center |
| Alexandra Laura Ochalek | 5965074 | 2022 | Due to re‑register | Northwestern University Pritzker School of Law | ||
| Amit Ochani | 5197454 | 2014 | Currently registered | New York, NY | Kozusko Harris Duncan | Brooklyn Law School |
| Vinod Ochani | 4898490 | 2011 | Currently registered | Mineola, NY | Seelig Dressler Ochani LLC | St. John’s University School of Law |
| Andres Eduardo Ochea | 6147730 | 2024 | Currently registered | New York, NY 10017, NY | United Nations | Fordham University School of Law |
| Daniel Arturo Ochea | 6075287 | 2023 | Currently registered | Bronx, NY | Supreme Court Bronx County Civil Part | |
| Louisa Eleojo Ocheja | 5986690 | 2022 | Due to re‑register | Michigan State University College of Law | ||
| Shimpei Ochi | 6043855 | 2023 | Currently registered | Tokyo, Japan | Mori Hamada & Matsumoto | Columbia Law School |
| Yuka Ochiai | 4935136 | 2011 | Currently registered | Tokyo, Japan | Mercari, Inc. | New York University School of Law |
| Sarah Caroline Adhiambo Ochieng | 6163679 | 2024 | Currently registered | Dallas, TX | Deloitte Tax LLP | University of Cincinnati College of Law |
| Francella Awino Ochillo | 4595476 | 2008 | Suspended, delinquent | Washington, DC | Legal Source | University of Illinois Chicago School of Law (formerly John Marshall) |
| Marilla Ochis | 2774131 | 1996 | Suspended, delinquent | University of Michigan Law School | ||
| Caroline E. Ochital | 2193886 | 1988 | Due to re‑register | Malvern, PA | Siemens Medical Solutions USA, Inc. | Boston University School of Law |
| Timur Gennadyevich Ochkhaev | 5828587 | 2020 | Currently registered | Saint Helier, Jersey | Walkers (Jersey) LLP | |
| Evelyn Lois Ochman | 2079358 | 1986 | Currently registered | Chappaqua, NY | Evelyn L. Ochman, Esq | George Washington University Law School |
| Kelly Anne Ochman | 4782512 | 2010 | Currently registered | New York, NY | Mitsubishi Ufj Financial Group, Inc. | Quinnipiac University School of Law |
| Marshall Lee Ochman | 1638386 | 1979 | Currently registered | Rockville Centre, NY | Marshall L Ochman | University of Illinois Chicago School of Law (formerly John Marshall) |
| Patrycja Ochman | 4512646 | 2007 | Currently registered | Cleveland, OH | Jones Day | McGill University Faculty of Law |
| Marly Ochmann St-Jean | 5082086 | 2012 | Due to re‑register | Paris, France | Estee Lauder Companies - Darphin | McGill University Faculty of Law |
| Adrian Ochoa | 5217427 | 2014 | Currently registered | San Antonio, TX | Chamberlain Hrdlicka | Cornell Law School |
| Alexander Joseph Howard Ochoa | 5817234 | 2020 | Currently registered | Placerville, CA | El Dorado County District Attorney’s Office | Stanford Law School |
| Austin Mitchell Ochoa | 6006449 | 2023 | Currently registered | New York, NY | Norm Ai | New York Law School |
| Carina Ochoa | 5294459 | 2014 | Currently registered | Greenwich, CT | Interactive Brokers LLC | Elisabeth Haub School of Law at Pace University |
| Christiana Ochoa | 3039591 | 2000 | Currently registered | Bloomington, IN | Indiana University Maurer School of Law | Harvard Law School |
| Enrique A. Ochoa | 1647841 | 1979 | Delinquent | Long Island City, NY | Enrique A. Ochoa, Esq. | Rutgers Law School |
| Henry Ochoa | 4240768 | 2004 | Currently registered | Fort Bliss, TX | El Paso Intelligence Center | St. John’s University School of Law |
| Jessica Myrna Ochoa | 6124655 | 2024 | Currently registered | New York, NY | The Boyd Law Group, PLLC | American University Washington College of Law |
| Juliana Ochoa | 5139803 | 2013 | Currently registered | Palo Alto, CA | Cornell Law School | |
| Ricardo Ochoa | 4643813 | 2008 | Currently registered | University of Denver Sturm College of Law | ||
| Sabrina Alessandra Ochoa | 6321491 | 2026 | Currently registered | Harvard Law School | ||
| Sofia Ivanka Ochoa | 6349435 | 2026 | Currently registered | Houston, TX | Clyde & Co US LLP | University of Pittsburgh School of Law |
| Stephanie Ochoa | 6277131 | 2026 | Currently registered | New York Law School | ||
| Victoria Vianey Ochoa | 6039093 | 2023 | Currently registered | New York, NY | New York State Office of the Attorney General | University of Pennsylvania Carey Law School |
| Andres Ochoa Bunsow | 2064087 | 1986 | Delinquent | Monterrey Mexico, Mexico | Ochoa Bunsow | Columbia Law School |
| Maria Esther Ochoa Ramos | 5602628 | 2018 | Currently registered | New York, NY | Lewis, Brisbois, Bisgaard & Smith, LLP | Fordham University School of Law |
| Crystal Theresa Ochrymowicz | 4674602 | 2009 | Currently registered | Seattle, WA | Internal Revenue Service Office of Chief Counsel | Western New England University School of Law |
| Alicia Tarei Ochs | 5272091 | 2014 | Due to re‑register | Bernardsville, NJ | New York Law School | |
| Ashley Elizabeth Ochs | 4821138 | 2010 | Currently registered | New York, NY | Smile Train Inc. | Seton Hall University School of Law |
| Bena N. Ochs | 2941771 | 1999 | Currently registered | Brooklyn Law School | ||
| Betty Wilson Ochs | 2896488 | 1998 | Currently registered | Mercer University School of Law | ||
| Brian Alan Ochs | 1867894 | 1983 | Resigned | Harvard Law School | ||
| Jessica Drangel Ochs | 2724110 | 1996 | Currently registered | University of Maryland Francis King Carey School of Law | ||
| Justin Laurance Ochs | 3064169 | 2000 | Delinquent | Washington, DC | Wilmer Cutler Pickering Hale & Dorr LLP | University of Virginia School of Law |
| Kalman Y. Ochs | 2752459 | 1996 | Currently registered | New York, NY | Fried Frank Harris Shriver & Jacobson LLP | Rutgers Law School |
| Kathryn L. Ochs | 2148849 | 1987 | Currently registered | Babylon, NY | University at Buffalo School of Law (SUNY) | |
| Marc Robert Ochs | 5751854 | 2020 | Currently registered | New York, NY | Greenberg Traurig LLP | St. John’s University School of Law |
| Mark S. Ochs | 1435239 | 1978 | Currently registered | Albany Law School | ||
| Martin Paul Ochs | 2197556 | 1988 | Currently registered | Atlanta, GA | United States Department of Justice | Boston University School of Law |
| Mitchel H. Ochs | 2058584 | 1986 | Currently registered | New York, NY | Becker Ne P.C. | New York Law School |
| Valerie Ochs | 2725968 | 1996 | Currently registered | Touro University Jacob D. Fuchsberg Law Center | ||
| Aaron Richard Ochse | 5271044 | 2014 | Currently registered | Michigan State University College of Law | ||
| Claire Marie Ochse | 5959416 | 2022 | Due to re‑register | New York, NY | Davis Wright Tremaine | Fordham University School of Law |
| Frank Ochsenfeld | 2798676 | 1997 | Currently registered | London, United Kingdom | Coller Capital | University of Pennsylvania Carey Law School |
| Linda M. Ochsenfeld | 1829209 | 1979 | Resigned | Loyola University Chicago School of Law | ||
| Kelly Anne Ochs-Hepworth | 5084272 | 2013 | Currently registered | Rochester, NY | Workers’ Compensation Board | University at Buffalo School of Law (SUNY) |
| Corinna Ochsmann | 5056734 | 2012 | Due to re‑register | Salzgitter, Germany | University of Iowa College of Law | |
| Danjuma Adeyi Ochugboju | 5266770 | 2014 | Currently registered | Houston, TX | Ochugboju Law Firm LLC, Immigration Attorneys | Thomas Jefferson School of Law (closed) |
| Angela Achieng Ochumba | 5591318 | 2018 | Currently registered | New York, NY | Standard Chartered Bank | New York University School of Law |
| Eke Ochuru | 2488906 | 1992 | Currently registered | Walnut, Ca 91788, CA | Ochuru & Associates | |
| Ruadhan Ciaran O’Ciarain | 5161120 | 2013 | Suspended, delinquent | Dublin, Ireland | Ruadhan O’Ciarain | University of Pennsylvania Carey Law School |
| Misun Ock | 4453049 | 2006 | Suspended, delinquent | West Virginia University College of Law | ||
| Ryan Scott Ockenden | 6082929 | 2024 | Currently registered | Syracuse, NY | Onondaga County Law Department | Syracuse University College of Law |
| Kimberly Denise Ockene | 4001269 | 2002 | Currently registered | Washington, DC | Humane World for Animals | Boston University School of Law |
| Paul Bradford Ockene | 2258440 | 1989 | Currently registered | Lake Mary, FL | Bny | Emory University School of Law |
| Dorotha Michelle Ocker | 4672028 | 2009 | Currently registered | Carrollton, TX | Ocker Law Firm | Stanford Law School |
| Jeanne P. Ockerman | 2449387 | 1992 | Currently registered | Washington, DC | Naval Sea Systems Command Office of Counsel | Boston College Law School |
| Lily Anne Ockert | 5307228 | 2015 | Currently registered | New York, NY | Sutton & Smyth LLP | New York Law School |
| Howard S. Ockman | 1271352 | 1978 | Suspended, delinquent | Washington, DC | Howard S. Ockman | New York University School of Law |
| Peter Daniel Ocko | 3015658 | 1999 | Suspended, delinquent | Los Angeles, CA | Major Lindsey & Africa | Duke University School of Law |
| Robert S. Ocko | 1865302 | 1983 | Currently registered | White Plains, NY | Harrington, Ocko & Monk, LLP | Boston University School of Law |
| Ronan Padraig O’Comhrai | 4156188 | 2003 | Currently registered | New York, NY | J.P. Morgan Chase & Co | University College Dublin Sutherland School of Law |
| Victoria Lynn O’Comhrai | 4794350 | 2010 | Currently registered | Fordham University School of Law | ||
| Alicia Maryse O’Connell | 4714390 | 2009 | Resigned | New York Law School | ||
| Alison Patricia O’Connell | 4403739 | 2006 | Currently registered | Arlington, VA | Department of Defense | Georgetown University Law Center |
| Amy Elizabeth O’Connell | 4310322 | 2005 | Currently registered | Islandia, NY | Roux Associates, Inc. | Maurice A. Deane School of Law at Hofstra University |
| Andrew James O’Connell | 2872299 | 1998 | Currently registered | Washington, DC | Guidepost Solutions LLC | New York Law School |
| Ann O’Connell | 2488005 | 1992 | Due to re‑register | Elisabeth Haub School of Law at Pace University | ||
| Ann Christina O’Connell | 2689495 | 1995 | Delinquent | Canton, MA | Telus Health | Fordham University School of Law |
| Anne O’Connell | 4045266 | 2002 | Currently registered | Dublin, Ireland | Anne O’Connell Solicitors | |
| Barbara J. O’Connell | 2668382 | 1995 | Currently registered | Yale Law School | ||
| Barry Patrick O’Connell | 4754453 | 2009 | Currently registered | New York, NY | Davis Wright Tremaine LLP | Cornell Law School |
| Barry Stephen O’Connell | 1590165 | 1977 | Suspended, delinquent | St. John’s University School of Law | ||
| Brendan J. O’Connell | 1517119 | 1963 | Due to re‑register | New York Law School | ||
| Brian Andrew O’Connell | 5416862 | 2016 | Currently registered | Tysons, VA | Medallia, Inc. | Northwestern University Pritzker School of Law |
| Brian Eugene O’Connell Jr | 2531176 | 1993 | Currently registered | Olean, NY | The Brian O’Connell JR. Law Firm, PLLC | Syracuse University College of Law |
| Bridget Maureen O’Connell | 2954113 | 1999 | Currently registered | Buffalo, NY | Nys Courts | University at Buffalo School of Law (SUNY) |
| Caitlin Dowd O’Connell | 5593165 | 2018 | Currently registered | New York, NY | Manhattan District Attorney’s Office | Georgetown University Law Center |
| Caroline Anne O’Connell | 3069861 | 2000 | Due to re‑register | Boxford, MA | Caroline O’Connell Law, LLC | Boston University School of Law |
| Carrie Lynn O’Connell | 4078853 | 2002 | Due to re‑register | Forest Hills, NY | The Law Office of Carrie Lynn O’Connell | St. John’s University School of Law |
| Catherine Theresa O’Connell | 2170801 | 1988 | Due to re‑register | Phillipsburg, NJ | Catherine T. O’Connell, Attorney at Law | Oklahoma City University School of Law |
| Cecilia E. O’Connell | 4982872 | 2012 | Currently registered | Garden City, NY | O’Connell Law, PLLC | St. John’s University School of Law |
| Christian Edward O’Connell | 2905313 | 1998 | Currently registered | Washington, DC | ||
| Christine Marie O’Connell | 4619565 | 2008 | Currently registered | New York, NY | King & Spalding LLP | New York Law School |
| Christopher Patrick O’Connell | 1237718 | 1973 | Currently registered | Los Angeles, CA | Parker, Milliken, Clark, O’Hara & Samuelian | Columbia Law School |
| Christopher Sean O’Connell | 3901352 | 2000 | Currently registered | CUNY School of Law | ||
| Claire Catherine O’Connell | 5599261 | 2018 | Currently registered | The Hague, Netherlands | Kosovo Specialist Chambers | Columbia Law School |
| Colleen Marie O’ Connell | 2206886 | 1988 | Delinquent | University of Connecticut School of Law | ||
| Cornelius O’Connell | 2447472 | 1992 | Currently registered | Fordham University School of Law | ||
| Cynthia L. O’Connell | 1996248 | 1985 | Currently registered | Plattsburgh, NY | Cynthia L. Oconnell, P.C. | Albany Law School |
| Daniel F. O’Connell | 1765148 | 1980 | Currently registered | Rutgers Law School | ||
| Daniel J. O’Connell | 2548972 | 1993 | Currently registered | Patchogue, NY | McGiff Halverson LLP | Fordham University School of Law |
| Daniel Maurice O’Connell | 4423778 | 2006 | Currently registered | New York, NY | Mound Cotton | Fordham University School of Law |
| Daniel Patrick O’Connell | 5756820 | 2020 | Currently registered | Garden City, NY | Barker Patterson Nichols LLP | St. John’s University School of Law |
| Danielle Marie O’Connell | 4324141 | 2005 | Currently registered | Hartford, CT | Office of the States Attorney | University of Connecticut School of Law |
| Danielle Sheer O’Connell | 4483525 | 2007 | Currently registered | Tinton Falls, NJ | Commvault Systems, Inc. | Georgetown University Law Center |
| David Joseph O’Connell | 4718730 | 2009 | Currently registered | University of Texas School of Law | ||
| Denis Joseph O’Connell | 3037314 | 2000 | Suspended, delinquent | London, United Kingdom | Merrill Lynch | University College Dublin Sutherland School of Law |
| Denise Michele O’Connell | 4369476 | 2005 | Resigned | University at Buffalo School of Law (SUNY) | ||
| Diane Elizabeth O’Connell | 4409314 | 2006 | Currently registered | Brooklyn, NY | Do Adr ℅ Diane O’Connell | New York Law School |
| Edward D. O’Connell | 4720439 | 2009 | Currently registered | St. John’s University School of Law | ||
| Edward John O’Connell | 2117000 | 1987 | Currently registered | Brooklyn, NY | Fordham University School of Law | |
| Elise Snowden O’Connell | 4515292 | 2007 | Currently registered | New York, NY | JP Morgan Asset Management | Vanderbilt University Law School |
| Elizabeth M. O’Connell | 1878685 | 1983 | Delinquent | New York, NY | Hawkins Delafield & Wood LLP | Harvard Law School |
| Ellen O’Connell | 1916774 | 1984 | Due to re‑register | Woodcliff Lake, NJ | Price, Meese, Shulman & D’Arminio, P.C. | Seton Hall University School of Law |
| Finn M. O’Connell | 6287973 | 2026 | Currently registered | New York, NY | Wilson Elser Moskowitz Edleman & Dicker LLP | Albany Law School |
| Geoffrey J. O’Connell | 1028679 | 1973 | Currently registered | New York University School of Law | ||
| George William O’Connell | 4046926 | 2002 | Due to re‑register | Milford, CT | Firm Prospects LLC | University of Connecticut School of Law |
| Gregory John O’Connell | 1742642 | 1981 | Due to re‑register | St. John’s University School of Law | ||
| Hans J. O’Connell | 1410687 | 1973 | Currently registered | New York, NY | M. Goodman & Associates, P.C. of Counsel | Fordham University School of Law |
| James Edward O’Connell | 2360998 | 1990 | Currently registered | University of Houston Law Center | ||
| James Joseph O’Connell Jr | 2947877 | 1999 | Currently registered | Washington, DC | Covington + Burling LLP | Emory University School of Law |
| James Patrick Duggan O’Connell | 4169827 | 2003 | Currently registered | Stanford, CA | Stanford Law School | Yale Law School |
| Jason Patrick O’ Connell | 2990307 | 1999 | Currently registered | Melbourne Vic, Australia | HWL Ebsworth Lawyers | Boston University School of Law |
| Jennifer Lauren O’Connell | 4384715 | 2006 | Currently registered | Portsmouth, NH | Albany International Corp. | DePaul University College of Law |
| Jennifer Margaret O’Connell | 4048849 | 2002 | Suspended, delinquent | Dublin, Ireland | The Law Library | Trinity College Dublin School of Law |
| Jesse Solomon O’Connell | 5605019 | 2018 | Currently registered | New York, NY | Katten Muchin Rosenman LLP | Brooklyn Law School |
| Jessica Anne O’Connell | 5314604 | 2015 | Currently registered | New York, NY | Simpson Thacher & Bartlett LLP | University of Virginia School of Law |
| John Burke O’Connell | 4069290 | 2002 | Currently registered | New York, NY | Legal Aid Society | Vermont Law and Graduate School |
| John Fitzgerald O’Connell | 3060274 | 2000 | Delinquent | Washington, DC | Secretary of the Air Force Legislative Liaison | Seton Hall University School of Law |
| John Gilbert O’Connell | 5081203 | 2013 | Currently registered | New York, NY | Simpson Thacher and Bartlett LLP | Villanova University Charles Widger School of Law |
| John Matthew O’Connell | 4727897 | 2009 | Currently registered | Sydney NSW, Australia | Minterellison | University of Oxford Faculty of Law |
| John Maurice O’Connell | 2604676 | 1994 | Currently registered | Columbia Law School | ||
| John Rohan O’Connell | 3993094 | 2001 | Currently registered | Bronx, NY | Law Offices of John O’Connell | New York Law School |
| John Ryan O’Connell | 1061548 | 1978 | Suspended, delinquent | New York, NY | Moody’s Investors Service | University of Pennsylvania Carey Law School |
| Justin David O’Connell | 4427415 | 2006 | Currently registered | Boston, MA | Massachusetts Attorney General’s Office | Syracuse University College of Law |
| Kaitlin Eileen O’Connell | 6173470 | 2024 | Currently registered | Brooklyn, NY | Nys Supreme Court, Appellate Division, Second Department | Brooklyn Law School |
| Karen Dahlberg O’Connell | 4136339 | 2003 | Currently registered | New York, NY | Almeida Law Group LLC | USC Gould School of Law |
| Kathleen Mary O’Connell | 1344282 | 1965 | Delinquent | New York, NY | Murphy & O’Connell | St. John’s University School of Law |
| Kathryn Anne O’Connell | 5531777 | 2017 | Currently registered | Woodcliff Lake, NJ | BMW of North America, LLC | Elisabeth Haub School of Law at Pace University |
| Kelly Ann O’Connell | 4907747 | 2011 | Currently registered | Greenbelt, MD | US Attorney’s Office, District of Maryland | University of North Carolina School of Law |
| Kelly Lynn O’Connell | 5521638 | 2017 | Currently registered | New York, NY | O’Connell Law PLLC | |
| Kerry J. O’Connell | 2045961 | 1986 | Due to re‑register | Fordham University School of Law | ||
| Kevin A. O’Connell | 2093169 | 1986 | Currently registered | St. John’s University School of Law | ||
| Kevin C. O’Connell | 1711001 | 1981 | Currently registered | University at Buffalo School of Law (SUNY) | ||
| Kevin Christopher O’Connell | 4839924 | 2010 | Currently registered | Castleton on Hudson, NY | Nys Court System - 3Rd Judicial District | Albany Law School |
| Kevin Daniel O’Connell | 1620673 | 1974 | Due to re‑register | Boston University School of Law | ||
| Kevin Gregory O’Connell | 2692044 | 1995 | Currently registered | Denver, CO | O’Connell, LLC | Georgetown University Law Center |
| Kevin James O’Connell | 2848893 | 1997 | Currently registered | Boston, MA | Verrill Dana LLP | Boston College Law School |
| Kevin Keyes O’Connell | 5596176 | 2018 | Currently registered | Brooklyn, NY | Version Story, Inc. | Stanford Law School |
| Kevin Patrick O’Connell | 2563930 | 1993 | Currently registered | Central Square, NY | O’Connell Law Firm | |
| Kieran O’Connell | 5922794 | 2022 | Due to re‑register | |||
| Kirsten Lyn O’Connell | 4309555 | 2005 | Currently registered | Dubai, United Arab Emirates | Allen Overy Shearman Sterling LLP | Georgetown University Law Center |
| Kristen Marie O’Connell | 5070974 | 2012 | Due to re‑register | New York Law School | ||
| Linda G. O’Connell | 2038958 | 1986 | Suspended, currently registered | New York Law School | ||
| Logan Hunter O’Connell | 6171664 | 2025 | Currently registered | Elisabeth Haub School of Law at Pace University | ||
| Lucia Graziano O’Connell | 4336145 | 2005 | Currently registered | Richmond, VA | McGuirewoods LLP | St. John’s University School of Law |
| Margaret Anne O’Connell | 1797265 | 1982 | Currently registered | Cooperstown, NY | M Anne Oconnell | Fordham University School of Law |
| Mark James O’Connell | 5739990 | 2019 | Currently registered | Queen’s University Belfast School of Law | ||
| Mary Ellen O’Connell | 1255777 | 1979 | Due to re‑register | New York Law School | ||
| Mary Ellen O’Connell | 2072387 | 1986 | Currently registered | Notre Dame, IN | Notre Dame Law School | Columbia Law School |
| Mary Julia O’Connell | 2004059 | 1985 | Currently registered | Forest Hills, NY | University at Buffalo School of Law (SUNY) | |
| Mary Katherine O’Connell | 2392405 | 1991 | Currently registered | West Henrietta, NY | Crown Castle | UCLA School of Law |
| Mary Rose O’Connell | 2371771 | 1991 | Currently registered | New York, NY | New York City Department of Finance | CUNY School of Law |
| Matthew McGowan O’Connell | 1682590 | 1980 | Suspended, delinquent | New York, NY | Matthew M Oconnell Esq | University of Virginia School of Law |
| Maureen C. O’Connell | 2308625 | 1989 | Currently registered | Mineola, NY | Nassau County Clerk | St. John’s University School of Law |
| Melissa Margarita O’Connell | 4983128 | 2012 | Currently registered | University College Cork School of Law | ||
| Michael Francis O’Connell | 4636106 | 2009 | Currently registered | Washington, DC | U.S. Dept. of Justice - Federal Bureau of Prisons | New York Law School |
| Michael Haynes O’Connell | 5120068 | 2013 | Currently registered | New York, NY | BMS Capital Advisory | University of Arizona James E. Rogers College of Law |
| Michael Patrick O’Connell | 3947728 | 2001 | Delinquent | Trenton, NJ | Pringle Quinn Anzano | Vermont Law and Graduate School |
| Natalie Ann O’Connell | 2668820 | 1995 | Currently registered | New York, NY | Intact Insurance | St. John’s University School of Law |
| Patricia Marie O’Connell | 2704468 | 1995 | Currently registered | Melbourne, FL | Space Coast Credit Union | University of Illinois College of Law |
| Patrick Daigle O’Connell | 5856109 | 2021 | Currently registered | New York, NY | Giannuzzi Lewendon, LLP | Duke University School of Law |
| Patrick M. O’Connell | 2218196 | 1981 | Due to re‑register | Riverhead, NY | Suffolk County District Attorney’s Office | New York Law School |
| Paul Edward O’Connell | 2308195 | 1990 | Currently registered | St. John’s University School of Law | ||
| Peter B. O’Connell | 2495190 | 1975 | Currently registered | Brooklyn Law School |
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026.