New York attorneys Ondei, Patricia Adamuz to Onigbinde, Naomi Leigh
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 14 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. 75 link to a page of their own.
Ondei, Patricia Adamuz to Onigbinde, Naomi Leigh
| Attorney | Registration No. | Admitted | Status | Office | Employer | Law school |
|---|---|---|---|---|---|---|
| Patricia Adamuz Ondei | 4793246 | 2010 | Currently registered | Sao Paulo, Brazil | Occhioblu Comercio de Roupas E Acessorios Ltda | Georgetown University Law Center |
| Amy Onder | 4212494 | 2004 | Currently registered | Princeton, NJ | Princeton University | New York Law School |
| Gokce Gul Onder | 6006332 | 2023 | Currently registered | New York, NY | Ro Law PLLC | |
| Thomas Steven Onder | 4129268 | 2003 | Currently registered | Hamilton, NJ | Stark & Stark | Brooklyn Law School |
| Marne Lynn Onderdonk | 2817914 | 1997 | Currently registered | Saratoga Springs, NY | Honorable Amy N. Quinn | Western New England University School of Law |
| Edward Andrew Onders | 1125327 | 1967 | Currently registered | Fordham University School of Law | ||
| Chrystin Diane Ondersma | 4721502 | 2009 | Currently registered | Newark, NJ | Rutgers University School of Law | Harvard Law School |
| Robert Douglas Ondocsin | 2259042 | 1989 | Currently registered | Elisabeth Haub School of Law at Pace University | ||
| Victor Odhiambo Ondoro | 4775128 | 2009 | Currently registered | London, United Kingdom | Handelsbanken Wealth & Asset Management | |
| Amy Cibinic Ondreyka | 2357002 | 1990 | Currently registered | University of Virginia School of Law | ||
| Karen A. Ondrovic | 2578185 | 1994 | Currently registered | White Plains, NY | Ondrovic & Platek PLLC | Elisabeth Haub School of Law at Pace University |
| Robert S. Ondrovic | 2032555 | 1986 | Currently registered | White Plains, NY | State of NY Unified Court System | Fordham University School of Law |
| Bree Tiara O’Neal | 6317887 | 2026 | Currently registered | Columbus, OH | Porter Wright Morris & Arthur LLP | Ohio State University Moritz College of Law |
| Colin Patrick O’Neal | 5779277 | 2020 | Currently registered | New York, NY | Vedder Price P.C. | Columbia Law School |
| Emily Michelle O’Neal | 6169551 | 2025 | Currently registered | Brooklyn, NY | Disability Rights New York | University of Texas School of Law |
| Helena Elizabeth O’Neal | 3961877 | 2001 | Currently registered | Tulane University Law School | ||
| James B. Oneal | 1996222 | 1985 | Currently registered | Long Island City, NY | Legal Outreach, Inc | Harvard Law School |
| Krishna Nicole O’Neal | 3937950 | 2001 | Currently registered | Bronx, NY | Bronx District Attorney’s Office | Albany Law School |
| Margaret Ann O’Neal | 2346393 | 1990 | Currently registered | Norwalk, CT | Margaret A. O’Neal, LLC | Fordham University School of Law |
| Mark Oneal | 5569074 | 2018 | Due to re‑register | New York, NY | Citigroup | New York Law School |
| Nathaniel L. O’Neal | 5043864 | 2012 | Currently registered | Florida State University College of Law | ||
| Nikia Alanna O’Neal | 4273892 | 2005 | Currently registered | St. John’s University School of Law | ||
| Patrick Stephens O’Neal | 6149090 | 2024 | Due to re‑register | New York, NY | Latham & Watkins LLP | University of Pennsylvania Carey Law School |
| Sarah O’Hare O’Neal | 4518783 | 2007 | Currently registered | Redmond, WA | Microsoft | Catholic University of America, Columbus School of Law |
| Sean Aaron O’Neal | 3979267 | 2001 | Currently registered | New York, NY | Cleary Gottlieb Steen & Hamilton LLP | Tulane University Law School |
| Inga Melanie O’Neale | 4071668 | 2002 | Currently registered | Brooklyn, NY | Supreme Court of the State of New York, Civil Term, Kings County | Maurice A. Deane School of Law at Hofstra University |
| Tina O’Neale | 5503065 | 2017 | Currently registered | Fordham University School of Law | ||
| Alyssa Jean O’Neil | 4797502 | 2010 | Delinquent | Albany, NY | NY State of Health, Appeals Unit, NYS Department of Health | Albany Law School |
| Anna Christine O’Neil | 4722369 | 2009 | Currently registered | Syracuse, NY | Wolff, Goodrich & Goldman | |
| Brandon Douglas O’Neil | 4677993 | 2009 | Currently registered | London, United Kingdom | Enyo Law LLP | Columbia Law School |
| Bridget Cathryn Oneil | 6297246 | 2026 | Currently registered | Bronx, NY | Office of the District Attorney, Bronx County | University of Connecticut School of Law |
| Caitlin Elizabeth O’Neil | 5397245 | 2016 | Currently registered | Buffalo, NY | City of Buffalo Law Department | University at Buffalo School of Law (SUNY) |
| Christine Robin O’Neil | 4616496 | 2008 | Due to re‑register | Philadelphia, PA | U.S. Securities and Exchange Commission | Benjamin N. Cardozo School of Law, Yeshiva University |
| Christopher Alan O’Neil | 4733689 | 2009 | Currently registered | Detroit, MI | Rocket | Thurgood Marshall School of Law, Texas Southern University |
| Christy Noel O’Neil | 5982152 | 2023 | Currently registered | Glens Falls, NY | Warren County Public Defender’s Office | Syracuse University College of Law |
| Colleen Ann O’Neil | 2910651 | 1998 | Currently registered | New Hyde Park, NY | Milman Labuda Law Group PLLC | Columbia Law School |
| Daniel Lawrence O’Neil | 4964987 | 2011 | Currently registered | New York, NY | Paul Hastings LLP | Georgetown University Law Center |
| Daniel Thomas O’Neil | 2411742 | 1991 | Delinquent | Houston, TX | S&B Engineers and Constructors, LTD. | Fordham University School of Law |
| David Andrew O’Neil | 4177259 | 2003 | Currently registered | Washington, DC | Debevoise & Plimpton | Harvard Law School |
| Gregory Michael O’Neil | 4937116 | 2011 | Currently registered | Atlanta, GA | Nelson Mullins Riley & Scarborough LLP | University of Connecticut School of Law |
| Jeanne Marie O’Neil | 3909439 | 2000 | Currently registered | St. John’s University School of Law | ||
| Jennifer J. O’Neil | 3892155 | 2000 | Due to re‑register | New York, NY | Marsh | Brooklyn Law School |
| Jennifer Jon O’Neil | 4673414 | 2009 | Currently registered | Boston University School of Law | ||
| Jennifer Rose O’Neil | 2110146 | 1987 | Currently registered | Latham, NY | Jennifer Tocci O’Neil | Albany Law School |
| Jerome Edward O’Neil | 4504460 | 2007 | Currently registered | Waltham, MA | Seqirus Inc. | Albany Law School |
| John J. O’Neil | 1925924 | 1984 | Delinquent | St. John’s University School of Law | ||
| John Joseph Oneil | 1250182 | 1969 | Currently registered | New York, NY | Paul Weiss Rifkind | University of Virginia School of Law |
| John Robert O’Neil | 4447454 | 2006 | Currently registered | New York, NY | Kirkland & Ellis LLP | Northwestern University Pritzker School of Law |
| John Stuart O’Neil | 4827705 | 2010 | Currently registered | Rockville, MD | Oneil and Bowman Disability Group, PC | University of Maryland Francis King Carey School of Law |
| Joseph O’Neil Jr | 2596435 | 1994 | Currently registered | Seton Hall University School of Law | ||
| Kevin Albert O’Neil | 4161741 | 2003 | Currently registered | Toronto on, Canada | Laminaris Intellectual Property Consultancy | Queen’s University Faculty of Law (Canada) |
| Lauren Elizabeth O’Neil | 4619268 | 2008 | Due to re‑register | University of Connecticut School of Law | ||
| Margaret Ellen Oneil | 2228435 | 1989 | Delinquent | Georgetown University Law Center | ||
| Margaret Mary Rose Oneil | 5673314 | 2019 | Currently registered | New York, NY | Patterson Belknap Webb & Tyler | Georgetown University Law Center |
| Marykate O’Neil | 6076103 | 2024 | Currently registered | Bronx, NJ | Marykate O’Neil | University of Connecticut School of Law |
| Matthew Warren O’Neil | 5417605 | 2016 | Due to re‑register | Syracuse, NY | Costello Cooney & Fearon PLLC | Cornell Law School |
| Michael Bernhard O’Neil | 4618013 | 2008 | Due to re‑register | George Washington University Law School | ||
| Michael Victor O’Neil | 4641957 | 2009 | Delinquent | New York Law School | ||
| Nathaniel James O’Neil | 5598198 | 2018 | Currently registered | Binghamton, NY | Broome County District Attorney’s Office | Charlotte School of Law (closed) |
| Patience Jane Oneil | 1931922 | 1984 | Currently registered | Elisabeth Haub School of Law at Pace University | ||
| Paul O’Neil | 2019495 | 1985 | Currently registered | University of Oregon School of Law | ||
| Peter Stokes O’Neil | 5028949 | 2012 | Suspended, delinquent | San Francisco, CA | Salesforce | Brooklyn Law School |
| Sean M O’Neil | 4230397 | 2004 | Due to re‑register | Duke University School of Law | ||
| Suzanne M. Oneil | 2520070 | 1993 | Currently registered | Houston, TX | Saint Thomas’ Episcopal School | Albany Law School |
| Tara Ann Raftery Oneil | 2575439 | 1993 | Currently registered | Bedford, MA | Multiplan, Inc. | New England Law Boston |
| Terence Michael O’Neil | 1547405 | 1971 | Due to re‑register | Garden City, NY | Bond, Schoeneck & King, PLLC | St. John’s University School of Law |
| Thomas Francis O’Neil III | 4140273 | 2003 | Currently registered | Baltimore, MD | The Saranac Group LLC | Georgetown University Law Center |
| William Edward O’Neil | 5238415 | 2014 | Currently registered | New York, NY | Covington & Burling LLP | Harvard Law School |
| Abby Elizabeth O’Neill | 6219927 | 2025 | Currently registered | New York, NY | Kirkland & Ellis | University of Virginia School of Law |
| Agnes E. O’Neill | 2861458 | 1998 | Currently registered | Brooklyn Law School | ||
| Alexandra Favelukes O’Neill | 4201851 | 2004 | Due to re‑register | New York, NY | Windels, Marx, Lane, Mittendorf | Harvard Law School |
| Alison Lee Marquez O’Neill | 3959111 | 2001 | Delinquent | New York, NY | Pfizer | New York University School of Law |
| Allison Marie O’Neill | 4454294 | 2007 | Currently registered | Oswego, NY | Nys Unified Court System | Albany Law School |
| Allison Rachel O’Neill | 4421707 | 2006 | Due to re‑register | Grand Saconnex Geneva, Switzerland | The Global Fund To Fight Aids, Tuberculosis and Malaria | Cornell Law School |
| Anne Arundel Burnett O’Neill | 4918025 | 2011 | Currently registered | Washington, DC | Cummins Inc. | American University Washington College of Law |
| Bairbre Eilis O’Neill | 4143418 | 2003 | Suspended, currently registered | Dublin, Ireland | Law Library | Yale Law School |
| Barbara Helen O’Neill | 4059903 | 2002 | Currently registered | Buffalo, NY | Attorney Barbara H. O’Neill | University at Buffalo School of Law (SUNY) |
| Bethany Bresnaider O’Neill | 2785749 | 1997 | Currently registered | Mineola, NY | Bethany O’Neill, Esq. | Albany Law School |
| Brendan Dionys O’Neill | 3981305 | 2001 | Suspended, delinquent | Toronto on, Canada | Goodmans LLP | University of Toronto Faculty of Law |
| Brian M. Oneill | 1867027 | 1983 | Delinquent | St. John’s University School of Law | ||
| Brian Patrick O’Neill | 4969424 | 2011 | Currently registered | Roseland, NJ | Chiesa Shahinian & Giantomasi PC | Seton Hall University School of Law |
| Bridget Roe O’Neill | 2502813 | 1992 | Currently registered | Chicago, IL | Sidley Austin LLP | University of Wisconsin Law School |
| Cait O’Sullivan O’Neill | 5940036 | 2022 | Currently registered | New York, NY | Latham & Watkins LLP | Duke University School of Law |
| Caroline Coleman O’Neill | 2401875 | 1991 | Due to re‑register | Columbia Law School | ||
| Casey Thomas O’Neill | 4715363 | 2009 | Currently registered | Mountain View, CA | Dickinson Wright PLLC | Boston University School of Law |
| Catherine O’Neill | 6021406 | 2023 | Currently registered | Brooklyn, NY | Brooklyn Defender Services | New York University School of Law |
| Catherine Carter Oneill | 2095842 | 1987 | Currently registered | Fordham University School of Law | ||
| Charles Francis O’Neill | 2814556 | 1997 | Suspended, delinquent | University College Dublin Sutherland School of Law | ||
| Charles Kenneth O’Neill | 1389428 | 1973 | Currently registered | New York, NY | Norton Rose Fulbright US LLP | Fordham University School of Law |
| Christine L. O’Neill | 5591748 | 2018 | Currently registered | Princeton, NJ | Acadia Pharmaceuticals | Seton Hall University School of Law |
| Christopher R. O’Neill | 4451605 | 2006 | Currently registered | Seton Hall University School of Law | ||
| Christopher W. Oneill | 2210029 | 1988 | Due to re‑register | New York University School of Law | ||
| Clare O’Neill | 2252062 | 1989 | Suspended, delinquent | Brooklyn Law School | ||
| Colin Xavier O’Neill | 2748408 | 1996 | Delinquent | Fordham University School of Law | ||
| Colleen V O’Neill | 4280962 | 2004 | Currently registered | Washington, DC | Ernst Young LLP | Georgetown University Law Center |
| Connor Francis O’Neill | 5810726 | 2020 | Currently registered | New York, NY | Z Capital Group | Cornell Law School |
| Constantine John Eunan O’Neill | 5818976 | 2020 | Currently registered | Queen’s University Belfast School of Law | ||
| Cory John O’Neill | 4553012 | 2007 | Currently registered | New York, NY | American Express | |
| Daniel Dillon O’Neill | 2851772 | 1997 | Currently registered | New York, NY | Minakian Enterprises | University of Virginia School of Law |
| Daniel Edward O’Neill | 2576874 | 1994 | Currently registered | White Plains, NY | Ondrovic & Platek, PLLC | Brooklyn Law School |
| Daniel J. Oneill | 1414473 | 1975 | Currently registered | Fordham University School of Law | ||
| Daniel Jonathan O’Neill | 4203485 | 2004 | Currently registered | New York, NY | Shapiro Arato Bach LLP | Duke University School of Law |
| Daniel Joseph O’Neill | 5855390 | 2021 | Currently registered | New York, NY | University of Miami School of Law | |
| David M. O’Neill | 2431500 | 1991 | Delinquent | New Haven, CT | ||
| David Renold O’Neill | 6139109 | 2024 | Due to re‑register | Vestal, NY | Levene Gouldin & Thompson LLP | Emory University School of Law |
| Deborah Piperni Oneill | 2086015 | 1986 | Currently registered | University of Dayton School of Law | ||
| Dennis William Oneill | 1220789 | 1964 | Currently registered | Georgetown University Law Center | ||
| Desmond Hugh O’Neill | 4048781 | 2002 | Currently registered | Trenton, NJ | New Jersey Schools Development Authority | Seton Hall University School of Law |
| Devin Blake O’Neill | 4455820 | 2007 | Currently registered | Toronto, Canada | Ey Law | University of Michigan Law School |
| Eamon Patrick O’Neill | 6146781 | 2024 | Due to re‑register | New York, NY | Fried, Frank, Harris, Shriver & Jacobson | Brooklyn Law School |
| Eileen M. O’Neill | 1981497 | 1984 | Delinquent | White Plains, NY | Eileen M. Oneill, Esq. | Fordham University School of Law |
| Elizabeth M. Oneill | 1036912 | 1978 | Currently registered | Harvard Law School | ||
| Elizabeth McGrath O’Neill | 1813500 | 1982 | Due to re‑register | St. John’s University School of Law | ||
| Ellen M. Oneill | 1926039 | 1984 | Currently registered | Suffolk University Law School | ||
| Emily Bridget O’Neill | 5885090 | 2021 | Currently registered | University College Cork School of Law | ||
| Emily Penney O’Neill | 4238648 | 2004 | Currently registered | New York, NY | American Express | Catholic University of America, Columbus School of Law |
| Erin Mary O’Neill | 5373329 | 2015 | Currently registered | New York, NY | Lewis Brisbois Bisgaard & Smith, LLP | Maurice A. Deane School of Law at Hofstra University |
| Eugene O’Neill Jr. | 1702596 | 1981 | Currently registered | Mineola, NY | Eugene O’Neill, JR. Esq. | Brooklyn Law School |
| Eugene Francis Oneill | 1667542 | 1980 | Currently registered | Floral Park, NY | Maurice A. Deane School of Law at Hofstra University | |
| Finbarr Joseph Oneill | 1190750 | 1977 | Delinquent | Coto de Caza, CA | Fordham University School of Law | |
| Grainne Elizabeth O’Neill | 5123187 | 2013 | Currently registered | Brooklyn, NY | O’Neill and Hassen, LLP | Columbia Law School |
| Gregory W. O’Neill | 1212513 | 1973 | Due to re‑register | New York, NY | Hill, Betts & Nash LLP | Fordham University School of Law |
| Haley Frances O’Neill | 6065064 | 2023 | Currently registered | New York, NY | Law Offices of Shahab Katirachi | St. Mary’s University School of Law (Texas) |
| Heather June O’Neill | 2815280 | 1997 | Currently registered | New York, NY | Olenko Law, PLLC | |
| James Francis O’Neill | 2892594 | 1998 | Due to re‑register | New York, NY | United States Courts SDNY | New York Law School |
| James Kevin Oneill | 1720424 | 1981 | Currently registered | Fordham University School of Law | ||
| James M. Oneill | 1747534 | 1981 | Disbarred | New York Law School | ||
| James Roderick O’Neill | 2666832 | 1995 | Currently registered | Winston Salem, NC | James Roderick Oneill Esq. | New York Law School |
| Jamie Lynn O’Neill | 6100457 | 2024 | Currently registered | New York, NY | Anderson Kill P.C. | Fordham University School of Law |
| Jane Cynthia Oneill | 2049385 | 1985 | Currently registered | Mendon, VT | Jane C. Oneill Esq | Maurice A. Deane School of Law at Hofstra University |
| Jeffrey C. O’Neill | 4447744 | 2006 | Resigned | Cornell Law School | ||
| Jessica Kate O’Neill | 5985064 | 2022 | Currently registered | Brussels, Belgium | Wilson Sonsini Goodrich & Rosati | Trinity College Dublin School of Law |
| John George Oneill | 2818615 | 1997 | Currently registered | Boston, MA | McAngus Goudelock & Courie | Boston College Law School |
| John I. O’Neill | 1235043 | 1979 | Due to re‑register | University at Buffalo School of Law (SUNY) | ||
| John J. Oneill | 1092972 | 1968 | Delinquent | Floral Park, NY | John J Oneill | St. John’s University School of Law |
| John Patrick O’Neill | 2696607 | 1995 | Currently registered | Boston, MA | Holland & Knight LLP | Georgetown University Law Center |
| Jonathan Frank O’Neill | 6261119 | 2025 | Currently registered | Trenton, NJ | Richard J. Hughes Justice Complex | Washington University in St. Louis School of Law |
| Joshua O’Neill | 5447537 | 2016 | Currently registered | Somerville, MA | Boston Defender LLC | Syracuse University College of Law |
| Joshua Ryan O’Neill | 5914676 | 2022 | Currently registered | Minneapolis, MN | Nichols Kaster, PLLP | University of Minnesota Law School |
| Judith Dianne O’Neill | 3939584 | 2001 | Due to re‑register | New York, NY | Judith D. O’Neill Esq, | University of Baltimore School of Law |
| Julia Kay O’Neill | 4340980 | 2005 | Currently registered | Framingham, MA | Bowditch & Dewey LLP | Boston College Law School |
| Julie E. Oneill | 2066801 | 1986 | Due to re‑register | New York Law School | ||
| Julie Gearty O’Neill | 2700938 | 1995 | Currently registered | Boston, MA | Morrison & Foerster LLP | Georgetown University Law Center |
| Justin John O’Neill | 2666527 | 1995 | Currently registered | Artesia, CA | Mobile X Global, Inc. | Columbia Law School |
| Katharine Hastings O’Neill | 6232391 | 2025 | Currently registered | New York, NY | Davis Polk & Wardwell LLP | Fordham University School of Law |
| Katharine Ruth Therese O’Neill | 5064548 | 2012 | Suspended, delinquent | Columbia Law School | ||
| Katherine Ann O’Neill | 5235379 | 2014 | Currently registered | New York, NY | Redesign Health | Boston University School of Law |
| Kathleen Elizabeth O’Neill | 5873336 | 2021 | Currently registered | New York, NY | Debevoise & Plimpton LLP | Benjamin N. Cardozo School of Law, Yeshiva University |
| Kathleen Heidbrier O’Neill | 4604161 | 2008 | Currently registered | Santa Rosa, CA | O’Neill Tran Law | Michigan State University College of Law |
| Kathleen M. Oneill | 1722198 | 1981 | Currently registered | Seattle, WA | Kathleen O’Neill | Columbia Law School |
| Kathleen M. O’Neill | 2455749 | 1992 | Due to re‑register | Montrose, NY | US Department of Veterans Affairs | St. John’s University School of Law |
| Kathleen Marie O’Neill | 4551933 | 2007 | Currently registered | New York, NY | New York Life Insurance Company | New York University School of Law |
| Kathleen Nicole O’Neill | 2374122 | 1991 | Currently registered | Elisabeth Haub School of Law at Pace University | ||
| Kathleen Suzanne O’Neill | 4443115 | 2006 | Currently registered | Washington, DC | Fried, Frank, Harris, Shriver & Jacobson LLP | Tulane University Law School |
| Kathryn Alicia Andrea O’Neill | 4985743 | 2012 | Currently registered | New York, NY | Office of the Special Narcotics Prosecutor | Boston University School of Law |
| Kathy Ann O’Neill | 4230199 | 2004 | Resigned | Temple University Beasley School of Law | ||
| Kelly Ann O’Neill | 2582666 | 1993 | Currently registered | New York, NY | Appellate Division, First Department | Fordham University School of Law |
| Kelly Anne O’Neill | 2574556 | 1993 | Currently registered | White Plains, NY | State Insurance Fund | Elisabeth Haub School of Law at Pace University |
| Kerry Anne O’Neill | 5143995 | 2013 | Currently registered | University of Baltimore School of Law | ||
| Kevin Corey O’Neill | 4968129 | 2011 | Currently registered | New York, NY | Kohlberg Kravis Roberts | Georgetown University Law Center |
| Kevin Francis O’Neill | 1776152 | 1982 | Currently registered | Lynbrook, NY | St. John’s University School of Law | |
| Kevin J. O’Neill | 2171502 | 1988 | Currently registered | New York, NY | Byrne & O’Neill LLP | St. John’s University School of Law |
| Kevin M. O’Neill | 2038990 | 1986 | Currently registered | Buffalo, NY | Office of the New York Attorney General | Albany Law School |
| Kevin P. Oneill | 2064624 | 1986 | Due to re‑register | San Francisco, CA | Littler Mendelson | Fordham University School of Law |
| Kristen Alexandra Margaret O’Neill | 5327523 | 2015 | Currently registered | Trumbull, CT | Saxe Doernberger & Vita, P.C. | Quinnipiac University School of Law |
| Kristen Gudewicz O’Neill | 4206876 | 2004 | Currently registered | Sag Harbor, NY | Kristen O’Neill | University of Michigan Law School |
| Kristy Ann O’Neill | 4788923 | 2010 | Currently registered | New York, NY | The Legal Aid Society | St. John’s University School of Law |
| Laura Casarano O’Neill | 2855914 | 1997 | Suspended, delinquent | New York, NY | Roundabout Theatre Company | DePaul University College of Law |
| Laura Emily O’Neill | 5366026 | 2015 | Currently registered | Washington, DC | U.S. Office of Personnel Management | Columbia Law School |
| Laura J. O’Neill | 4446936 | 2006 | Due to re‑register | New City, NY | Cygnus Holdings LLC | Rutgers Law School |
| Lauran Mary O’Neill | 5753108 | 2019 | Currently registered | Poughkeepsie, NY | Oneill Group | Vanderbilt University Law School |
| Lauren Koffler Oneill | 2707263 | 1995 | Currently registered | Cedar Knolls, NJ | Macneill, O’Neill & Riveles, LLC | Seton Hall University School of Law |
| Leeann Michelle O’Neill | 4554499 | 2008 | Resigned | American University Washington College of Law | ||
| Lesley Alexandra O’Neill | 6067789 | 2023 | Currently registered | New York, NY | Pcva Law | University of Georgia School of Law |
| Lesley Alison O’Neill | 4644050 | 2009 | Currently registered | Miami, FL | Bam Management US Holdings Inc. (Binance.Us) | New York Law School |
| Louis Francis O’Neill III | 2815967 | 1997 | Currently registered | New York, NY | White & Case LLP | Harvard Law School |
| Lynne D. Oneill | 2027811 | 1986 | Delinquent | Touro University Jacob D. Fuchsberg Law Center | ||
| Madeleine Clarice O’Neill | 5760616 | 2020 | Suspended, currently registered | Seattle, WA | King County Dept. of Public Defense, the Defender Association Division | Harvard Law School |
| Margaret M. O’Neill | 3001476 | 1999 | Currently registered | New York, NY | Debevoise & Plimpton LLP | Columbia Law School |
| Margaret R. O’Neill | 5562004 | 2017 | Currently registered | Garden City, NY | Goldberg Segalla, LLP | Catholic University of America, Columbus School of Law |
| Marina O’Neill | 4847273 | 2010 | Currently registered | Goshen, NY | County of Orange, Department of Law | Albany Law School |
| Mary Catherine O’Neill | 2207306 | 1988 | Currently registered | Albany Law School | ||
| Mary Elizabeth O’Neill | 4376778 | 2006 | Suspended, delinquent | Chicago, IL | Jones Day | American University Washington College of Law |
| Mary Elizabeth O’Neill | 5177001 | 2013 | Currently registered | Charlotte, NC | Womble Bond Dickinson | Marquette University Law School |
| Mary Kerin O’Neill | 5442371 | 2016 | Currently registered | Stony Brook, NY | Mary Kerin O’Neill, P.C. | Maurice A. Deane School of Law at Hofstra University |
| Mary S O’Neill | 1897925 | 1977 | Currently registered | Boston University School of Law | ||
| Matthew O’Neill | 6158273 | 2024 | Currently registered | Boston College Law School | ||
| Matthew Owen O’Neill | 5515507 | 2017 | Currently registered | McLean, VA | KPMG LLP | St. John’s University School of Law |
| Megan Oneill | 1755339 | 1981 | Due to re‑register | University of Connecticut School of Law | ||
| Meghan O’Neill | 4704052 | 2009 | Currently registered | Piscataway, NJ | American Standard | Notre Dame Law School |
| Meghan Marie O’Neill | 4738316 | 2009 | Currently registered | Toms River, NJ | Office of the Ocean County Prosecutor | Vermont Law and Graduate School |
| Melissa J. O’Neill | 4416632 | 2006 | Due to re‑register | New York, NY | Department of Citywide Administrative Services | New York Law School |
| Michael C. O’Neill | 2994705 | 1999 | Currently registered | Buffalo, NY | Hodgson Russ, LLP | Marquette University Law School |
| Michael G. O’Neill | 1887033 | 1983 | Currently registered | New York, NY | Michael G. O’Neill | Wayne State University Law School |
| Michael J. O’Neill | 4437422 | 2006 | Suspended, delinquent | Radnor, PA | Fellerman & Ciarimboli | Villanova University Charles Widger School of Law |
| Michael Jerry Oneill | 1904911 | 1984 | Suspended, delinquent | Washington, DC | US Tax Court | |
| Michael John Oneill | 2834976 | 1997 | Currently registered | New York Law School | ||
| Michael Kevin Oneill | 2115673 | 1987 | Currently registered | San Francisco, CA | Venable LLP | New York Law School |
| Michael Patrick O’Neill | 6257646 | 2026 | Currently registered | Arizona State University Sandra Day O’Connor College of Law | ||
| Michael Richard Oneill | 1111822 | 1978 | Currently registered | Syracuse, NY | Cleveland State University College of Law | |
| Michael Thomas O’Neill | 4689782 | 2009 | Currently registered | Indianapolis, IN | Eli Lilly and Company | Harvard Law School |
| Olivia Ann Oneill | 1737840 | 1981 | Suspended, delinquent | University of California, Berkeley, School of Law | ||
| Patricia Margaret Mary O’Neill | 6095335 | 2024 | Currently registered | Tulane University Law School | ||
| Paul Bradley O’Neill | 2443026 | 1991 | Currently registered | Garden City, NY | New York University School of Law | |
| Paul Joseph O’Neill Jr. | 1288752 | 1961 | Currently registered | New York, NY | Paul J. O’Neill JR. | New York University School of Law |
| Paul Thomas O’Neill | 2616209 | 1994 | Due to re‑register | New York, NY | Potomac Law Group, PLLC | University of Virginia School of Law |
| Paul Thomas O’Neill | 2656411 | 1995 | Currently registered | Kingston, NY | Nys Court System | George Washington University Law School |
| Peter Robert O’Neill | 6206635 | 2025 | Currently registered | Stanford Law School | ||
| Philip Daniel Oneill Jr | 2049278 | 1986 | Currently registered | Boston College Law School | ||
| Raymond Bernard O’Neill Jr. | 1337245 | 1978 | Currently registered | Rochester, NY | Albany Law School | |
| Rebecca Frances Oneill | 6238125 | 2025 | Currently registered | New York, NY | Simpson Thacher & Bartlett LLP | Boston College Law School |
| Regan Patrick Tatsuo O’Neill | 4935391 | 2011 | Currently registered | New York, NY | Burkehill Global Management, LP | New York Law School |
| Rita-Anne O’Neill | 4326542 | 2005 | Currently registered | Los Angeles, CA | Sullivan & Cromwell LLP | Boston College Law School |
| Robert Brendan Oneill | 1789460 | 1963 | Suspended, due to re‑register | Fordham University School of Law | ||
| Robert Edward Oneill | 1861590 | 1983 | Currently registered | Apollo Beach, FL | Oneill Law Group LLC | New York Law School |
| Robert Emmett Oneill | 1618511 | 1972 | Resigned | Syracuse University College of Law | ||
| Robert Paul Oneill | 1860329 | 1983 | Currently registered | Southwestern Law School | ||
| Robert S. O’Neill | 2336436 | 1990 | Currently registered | Oakhurst, NJ | Robert’s O’Neill | Brooklyn Law School |
| Ryan Alexander O’Neill | 4727301 | 2009 | Currently registered | New York, NY | Law Offices of Mark Sherman, LLC | Quinnipiac University School of Law |
| Sean Christopher O’Neill | 5115423 | 2013 | Currently registered | New York, NY | Milbank LLP | Columbia Law School |
| Sean Kotaro O’Neill | 2976041 | 1999 | Currently registered | Fordham University School of Law | ||
| Shane O’Neill | 2146132 | 1987 | Currently registered | New York, NY | Fordham University School of Law | |
| Shanise Jasmine O’Neill | 4596268 | 2008 | Due to re‑register | Kew Gardens, NY | Queens District Attorney’s Office | St. John’s University School of Law |
| Shawn Lawrence O’Neill | 4727335 | 2009 | Currently registered | New York, NY | Euclid Transactional, LLC | Cornell Law School |
| Sheila O’Neill | 2256725 | 1989 | Currently registered | St. John’s University School of Law | ||
| Shelley B. Oneill | 1686138 | 1980 | Currently registered | Vanderbilt University Law School | ||
| Stephanie Maria O’Neill | 5352075 | 2015 | Delinquent | Hasbrouck Heights, NJ | Garcia Law,Llc | Rutgers Law School |
| Stephen John O’Neill | 4357588 | 2005 | Suspended, delinquent | New York, NY | Citigroup | Quinnipiac University School of Law |
| Stephen Michael O’Neill | 2584217 | 1994 | Currently registered | Buffalo, NY | Stephen M. O’Neill Esq. PLLC | Tulane University Law School |
| Stephen T. Oneill | 1751726 | 1975 | Suspended, delinquent | Providence, RI | Stephen T. O’Neill | Fordham University School of Law |
| Tamara Nicole O’Neill | 5747894 | 2020 | Currently registered | New York, NY | Transperfect Translations International | Marquette University Law School |
| Tara O’Neill | 2740629 | 1996 | Currently registered | Brooklyn Law School | ||
| Taylor Maxwell O’Neill | 5172937 | 2013 | Currently registered | New York, NY | The Blackstone Group LP. | Georgetown University Law Center |
| Terrence B. Oneill | 1903129 | 1984 | Delinquent | Albany, NY | The Constantine Institute | Albany Law School |
| Thomas Edward O’Neill | 2361517 | 1990 | Currently registered | Surfside Beach, SC | Tide Law Firm, LLC | Brooklyn Law School |
| Thomas J. Oneill | 1438134 | 1971 | Currently registered | Syracuse, NY | ||
| Thomas James O’Neill | 1835495 | 1977 | Currently registered | Poughkeepsie, NY | Thomas J. O’Neill Esq. | Western New England University School of Law |
| Thomas Newman O’Neill III | 2548295 | 1993 | Currently registered | London, United Kingdom | Herbert Smith Freehills Kramer LLP | University of Pennsylvania Carey Law School |
| Thomas Richard O’Neill | 5499116 | 2017 | Currently registered | New York, NY | Paul, Weiss, Rifkind, Wharton & Garrison LLP | New York University School of Law |
| Thomas Vincent O’Neill | 5513890 | 2017 | Currently registered | New York, NY | Manhattan District Attorney’s Office | Penn State Dickinson Law |
| Timothy James Oneill | 6236129 | 2025 | Currently registered | New York, NY | Cravath, Swaine & Moore LLP | New York University School of Law |
| Timothy Joseph Oneill | 1808161 | 1982 | Suspended, currently registered | Georgetown University Law Center | ||
| Tyler John O’Neill | 5916325 | 2022 | Currently registered | University at Buffalo School of Law (SUNY) | ||
| William Gordon Oneill | 1925221 | 1983 | Delinquent | Brooklyn, NY | William G Oneill Esq | New York University School of Law |
| William John Oneill | 1762269 | 1982 | Delinquent | Staten Island, NY | O’Neill & O’Neill | Brooklyn Law School |
| Forest Jean O’Neill-Greenberg | 4747416 | 2009 | Currently registered | Boston, MA | Federal Public Defender Office | Northeastern University School of Law |
| Karen Marie O’Neill Ocasio | 5490339 | 2017 | Currently registered | Washington, DC | Airbnb | Cornell Law School |
| Alphonso O’Neil-White | 2977411 | 1999 | Currently registered | University of Louisville Louis D. Brandeis School of Law | ||
| Anne Elizabeth O’Neil-White | 5190731 | 2014 | Due to re‑register | Buffalo, NY | M&T Bank | Washington University in St. Louis School of Law |
| Matthew Michael Onek | 4270617 | 2004 | Currently registered | Yale Law School | ||
| Michelle Diann Onello | 2558765 | 1993 | Suspended, currently registered | New York, NY | Global Justice Center | Harvard Law School |
| Holly Anne Oner | 5111802 | 2013 | Currently registered | Greensboro, NC | Legal Aid of North Carolina, Inc. | New England Law Boston |
| Albert Joseph Oneto | 4209334 | 2004 | Currently registered | Bridgeport, CT | Office of the Attorney General | Quinnipiac University School of Law |
| Cinar Oney | 5767538 | 2020 | Currently registered | New York, NY | Levi & Korsinsky LLP | Fordham University School of Law |
| Merve Oney | 5291604 | 2014 | Currently registered | Columbia Law School | ||
| Aaron Jian Ee Ong | 5986823 | 2022 | Currently registered | |||
| Allan Verman Yap Ong | 4969259 | 2011 | Currently registered | Manila, Philippines | Ateneo de Manila University School of Law | |
| Arthur Yee Dean Ong | 2262806 | 1989 | Currently registered | Fordham University School of Law | ||
| Burton Tze-En Ong | 4157483 | 2003 | Currently registered | Singapore, Singapore | Faculty of Law, National University of Singapore | |
| Chin Heng Ong | 5331335 | 2016 | Due to re‑register | |||
| Christopher Wen Rong Ong | 6086763 | 2023 | Currently registered | Singapore, Singapore | Hartree Partners (Singapore) | Singapore Management University Yong Pung How School of Law |
| Colin Pang Huan Ong | 4293114 | 2005 | Currently registered | Singapore, Singapore | Eng and Co. LLC | |
| Deborah Sze Chen Ong | 4047361 | 2002 | Currently registered | Singapore, Singapore | Equinor Asia Pacific Pte LTD | National University of Singapore Faculty of Law |
| Eduardo Castillo Ong | 1993039 | 1985 | Suspended, delinquent | Manila, Philippines | Machinebank’s Corporation | University of the Philippines College of Law |
| Edwardson Lee Ong | 4986758 | 2011 | Suspended, delinquent | Ateneo de Manila University School of Law | ||
| Ee-Ing Ong | 4759254 | 2009 | Currently registered | Singapore, Singapore | Singapore Management University School of Law | Antonin Scalia Law School, George Mason University |
| Elisabeth Su-Li Ong | 5697826 | 2019 | Currently registered | Singapore, Singapore | Latham & Watkins LLP | Columbia Law School |
| Emmet Patrick Ong | 4581369 | 2008 | Due to re‑register | San Francisco, CA | Bryan Cave Leighton Paisner LLP | Columbia Law School |
| Gail Szeshuen Ong | 2979987 | 1999 | Currently registered | Singapore, Singapore | Wongpartnership LLP | University of Pennsylvania Carey Law School |
| George Ong | 2893584 | 1998 | Currently registered | Emory University School of Law | ||
| Helen Chua Ong | 2654457 | 1995 | Delinquent | New York University School of Law | ||
| Jeff Francis Uy Ong | 5870530 | 2021 | Currently registered | New York, NY | Counsel Ai Corporation | Harvard Law School |
| Jennifer Joy Chua Ong | 4523155 | 2007 | Currently registered | Manila, Philippines | Court of Appeals | Ateneo de Manila University School of Law |
| Jia Hong Ashley Ong | 5644406 | 2019 | Currently registered | Singapore, Singapore | Attorney-General’s Chambers, Singapore | Columbia Law School |
| Joanne Siyun Ong | 5220512 | 2014 | Due to re‑register | Singapore, Singapore | Temasek International Pte. LTD. | National University of Singapore Faculty of Law |
| Kara Whei-Juan Ong | 2848125 | 1997 | Currently registered | Atlanta, GA | Truist | Harvard Law School |
| Kimberly W. Ong | 4892931 | 2012 | Due to re‑register | New York, NY | Natural Resources Defense Council | New York University School of Law |
| Li Ling Ong | 6076210 | 2023 | Currently registered | North Chicago, IL | Abbvie Inc. | |
| Mevelyn Sue Ling Ong | 5528310 | 2017 | Currently registered | Hong Kong, Hong Kong | Sidley Austin | Melbourne Law School, University of Melbourne |
| Rachel Yue Qing Ong | 5874250 | 2021 | Currently registered | London, United Kingdom | Pallas Partners LLP | |
| Ramsey C Ong | 4354783 | 2005 | Currently registered | Mahwah, NJ | Jaguar Land Rover North America, LLC | Rutgers Law School |
| Rehn-Huey Ong | 6209613 | 2025 | Currently registered | |||
| Richard Denton Ong | 6013890 | 2023 | Currently registered | New York, NY | Quinn Emanuel Urquhart & Sullivan, LLP | Columbia Law School |
| Sin Yee Ong | 5131230 | 2013 | Currently registered | Singapore, Singapore | HFW | London School of Economics and Political Science Law School |
| Virgilio Raquiza Ong | 5930458 | 2022 | Due to re‑register | New York, NY | Jpmorgan Chase | Suffolk University Law School |
| Walter Santos Ong | 2876936 | 1998 | Due to re‑register | Manila, Philippines | Philippine Court of Appeals | Ateneo de Manila University School of Law |
| Jose Luis Ongay | 2135036 | 1987 | Currently registered | Plymouth Meeting, PA | Jose Luis Ongay | Temple University Beasley School of Law |
| Henry Mokua Ongeri | 4406476 | 2006 | Delinquent | Brooklyn Center, MN | The Transatlantic Law Firm, PLLC | Mitchell Hamline School of Law |
| Marie Ongioni | 1798859 | 1982 | Due to re‑register | East Hampton, NY | Ongioni & Borrelli | New York Law School |
| Imelda Ongkowidagdo | 4197349 | 2004 | Suspended, delinquent | Boston University School of Law | ||
| Alastair J. Onglingswan | 2763506 | 1996 | Currently registered | New York, NY | S&O Law | Fordham University School of Law |
| John Will Ongman | 2369775 | 1990 | Currently registered | Great Falls, VA | Cardinal Crest Solutions | Northwestern University Pritzker School of Law |
| Sarah Iliana Ongun | 4985982 | 2012 | Currently registered | New York, NY | Milbank LLP | Harvard Law School |
| Sheila Ongwae | 5238480 | 2014 | Currently registered | San Francisco, CA | Lubin Olson & Niewiadomski LLP | Columbia Law School |
| Lorraine K. Ongwenyi | 5796487 | 2020 | Due to re‑register | Emory University School of Law | ||
| Anika Tazin Oni | 6269393 | 2025 | Currently registered | University of Akron School of Law | ||
| Olaoluwa Folasade Oni | 5662028 | 2019 | Currently registered | Nigerian Law School | ||
| Olufunlola Olayemi Oni | 4263208 | 2004 | Due to re‑register | Brooklyn, NY | Law Office of Olufunlola Oni | |
| Anuoluwapo Oluwafolahanmi Onifade | 5753173 | 2019 | Currently registered | Redhill, United Kingdom | Nigerian Law School | |
| Naomi Leigh Onigbinde | 5971155 | 2022 | Currently registered | Bronx, NY | The Bronx Defenders | New York University School of Law |
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026.