New York attorneys with a surname starting with O
By surname, as the register spells it
- Attorneys
- 6,859
- Register file
- Sep 29, 2026
6,859 living attorneys on the register file of Sep 29, 2026 have a surname starting with O, in 23 parts of up to 300, by surname. 1,634 have a page of their own.
The parts
| Part | From | To | Attorneys |
|---|---|---|---|
| Part 1 | O, Ki | O’Brien, Anne | 300 |
| Part 2 | O’Brien, Anne | Obrien, Timothy | 300 |
| Part 3 | O’Brien, Timothy | O’Connell, Peter | 300 |
| Part 4 | O’Connell, Philip | O’Connor, Ryan | 300 |
| Part 5 | O’Connor, Ryan | O’Donnell, Patrick | 300 |
| Part 6 | O’Donnell, Patrick | Ogbu, Okor | 300 |
| Part 7 | Ogbuagu, Lolade | Oh, Shawn Hyup | 300 |
| Part 8 | Oh, Song Hee | Ojo, Olugbemiga | 300 |
| Part 9 | Ojo, Oluwaseun | Okonkwo, Obioma | 300 |
| Part 10 | Okonofua, Obehioye | O’Leary, Lauren | 300 |
| Part 11 | O’Leary, Maeve | Olivera, Paul | 300 |
| Part 12 | Oliveras, Rene | Olson, Rebecca | 300 |
| Part 13 | Olson, Richard | Oncu, Melike | 300 |
| Part 14 | Ondei, Patricia | Onigbinde, Naomi | 300 |
| Part 15 | Onijala, Mojoyinola | Oquendo, Marissa | 300 |
| Part 16 | Oquendo, Ricardo | Oringer, Andrew | 300 |
| Part 17 | Oringer, Bonnie | Orr, Kirsten | 300 |
| Part 18 | Orr, Kirsten | Osborn, John | 300 |
| Part 19 | Osborn, John | Osnard, Stephanie | 300 |
| Part 20 | Osnato, Christopher | O’Sullivan, Patrick | 300 |
| Part 21 | O’Sullivan, Patrick | Ou, Rebecca | 300 |
| Part 22 | Ou, Wanhui | Owens, Molly | 300 |
| Part 23 | Owens, Nadiyah | Ozzimo, Gregory | 259 |
Each row of a part gives the registration number, the year admitted and the status the register records under 22 NYCRR Part 118 (what each status means: the status pages), the office and the employer. To find one attorney, look up a name or registration number; for every letter, the A to Z.
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026.