License & bar number lookup
New York Attorney License Lookup
Search 372,587 attorneys registered with the NYS Office of Court Administration (OCA) Attorney Registration Unit by name or bar number. Every record shows the official license status and as-of date.
How to verify a New York attorney
- Search the attorney by name or bar number in the search box above — it pulls the official NYS Office of Court Administration (OCA) Attorney Registration Unit record.
- Confirm the license status reads "active" (not suspended, disbarred, inactive, or not eligible).
- Check the disciplinary standing — disbarred or suspended is a public record you can see before you hire.
- Cross-check the bar number and admission year against anything the attorney told you.
New York attorneys — last name “O”
Active New York attorneys with last names starting “O.” Use the search box above for an exact name or bar number.
Christopher O'Brien
Tokyo 104-0033
- Bar #
- 1726298
- Admitted
- 1981 · 45 yrs
- Law school
- University of Pennsylvania Carey Law School
- Firm
- Stonehenge Partners Limited
Kevin F. O'Boyle
Cross Junction, VA
- Bar #
- 2042729
- Admitted
- 1986 · 40 yrs
- Law school
- Fordham Law School
Anne F. O'Berry
West Palm Beach, FL
- Bar #
- 2152718
- Admitted
- 1987 · 39 yrs
- Law school
- New York University
- Firm
- James K. Green, P.a.
Christopher J. O'Brien
Amherst, NY
- Bar #
- 2241909
- Admitted
- 1989 · 37 yrs
- Law school
- Washington and Lee University School of Law
- Firm
- O'Brien & Ford, PC
Una Marie O'Boyle
NY attorney
- Bar #
- 2507044
- Admitted
- 1992 · 34 yrs
- Law school
- New York Law School
Catherine Zucal O'Brien
Garden City, NY
- Bar #
- 2527679
- Admitted
- 1993 · 33 yrs
- Law school
- St John University
- Firm
- C/o Meyer Suozzi English & Klein PC
Christopher Coll O'Brien
NY attorney
- Bar #
- 2544500
- Admitted
- 1993 · 33 yrs
- Law school
- Albany Law School
Anne O'Beirne
White Plains, NY
- Bar #
- 2637940
- Admitted
- 1994 · 32 yrs
- Law school
- George Washington University
- Firm
- Pace Women'S Justice Center
Andrew Gordon Sommerville O'Brien
Nassau
- Bar #
- 2583037
- Admitted
- 1994 · 32 yrs
- Law school
- Suny At Buffalo
- Firm
- Glinton Sweeting O'Brien
Brian Kelly O'Bleness
Kansas City, MO
- Bar #
- 2658375
- Admitted
- 1995 · 31 yrs
- Law school
- George Washington University Law School
- Firm
- Dentons Us LLP
Andrea White O'Brien
Ocean, NJ
- Bar #
- 2661551
- Admitted
- 1995 · 31 yrs
- Law school
- Brooklyn Law School
- Firm
- Ansell, Grimm, & Aaron, PC
Anne Patricia O'Brien
Farmingdale, NY
- Bar #
- 2687523
- Admitted
- 1995 · 31 yrs
- Law school
- St Johns
- Firm
- Carman, Callahan & Ingham, LLP
Bernadette Agnes O'Brien
NY attorney
- Bar #
- 2645158
- Admitted
- 1995 · 31 yrs
- Law school
- University of Miami School of Law
Christopher O'Brien
Albany, NY
- Bar #
- 2761732
- Admitted
- 1996 · 30 yrs
- Law school
- Syracuse University College of Law
- Firm
- New York State Dept of Taxation & Finance Office of Counsel
Carolyn Marie O'Brien
Los Angeles, CA
- Bar #
- 2820165
- Admitted
- 1997 · 29 yrs
- Law school
- St Johns University
Paul Martin O'Brian
Monterey, CA
- Bar #
- 2876696
- Admitted
- 1998 · 28 yrs
- Law school
- Suny At Buffalo
Jason Patrick O' Connell
Melbourne Vic 3000
- Bar #
- 2990307
- Admitted
- 1999 · 27 yrs
- Law school
- Boston University School of Law
- Firm
- Hwl Ebsworth Lawyers
Greg James O'Bradovich
Atlanta, GA
- Bar #
- 2973006
- Admitted
- 1999 · 27 yrs
- Law school
- University of Texas School of Law
- Firm
- Greg O'Bradovich
Anne Louise O'Brien
Bronx, NY
- Bar #
- 2974343
- Admitted
- 1999 · 27 yrs
- Law school
- Quinnipiac Collee
Hugh Stynes O'Beirne
NY attorney
- Bar #
- 3996683
- Admitted
- 2001 · 25 yrs
- Law school
- Vanderbilt University
Aaron Wesley O'Brien
Melville, NY
- Bar #
- 3986551
- Admitted
- 2001 · 25 yrs
- Law school
- Albany Union University
- Firm
- Law Office of Zapantis, Garner & Puglisi
Andrew James O'Brien
New York, NY
- Bar #
- 4052148
- Admitted
- 2002 · 24 yrs
- Law school
- New York Law School
- Firm
- Hogan Lovells Cadwalader
Tara Ann O'Brien Wu
Hilliard, OH
- Bar #
- 4107322
- Admitted
- 2003 · 23 yrs
- Law school
- Georgetown University
- Firm
- Verizon
Alicia C. O'Brien
Washington, DC
- Bar #
- 4149605
- Admitted
- 2003 · 23 yrs
- Law school
- American University Washington College
- Firm
- King and Spalding
Melissa Elaine O'Boyle
NY attorney
- Bar #
- 4450821
- Admitted
- 2006 · 20 yrs
- Law school
- Washington & Lee Univ School of Law
Laura Kathryn O'Boyle
New York, NY
- Bar #
- 4552311
- Admitted
- 2007 · 19 yrs
- Law school
- Stanford Law School
- Firm
- Gibson Dunn & Crutcher LLP
Adam Robert O'Brian
New York, NY
- Bar #
- 4703989
- Admitted
- 2009 · 17 yrs
- Law school
- Suny Buffalo Law School
- Firm
- Hunton Andrews Kurth LLP
Victoria Lynn O Comhrai
NY attorney
- Bar #
- 4794350
- Admitted
- 2010 · 16 yrs
- Law school
- Fordham University School of Law
Eoghan Patrick O Hargain
Dublin
- Bar #
- 4796306
- Admitted
- 2010 · 16 yrs
- Law school
- Trinity College Dublin/cornell Law School
- Firm
- Addleshaw Goddard (ireland) LLP
Sean O Loingsigh
Dublin 18
- Bar #
- 4829784
- Admitted
- 2010 · 16 yrs
- Law school
- New York University; University College Dublin
- Firm
- Sse
Daniel Benjamin O'Boyle
Princeton, NJ
- Bar #
- 4831673
- Admitted
- 2010 · 16 yrs
- Law school
- Boston University
- Firm
- Dr. Reddy'S Laboratories Inc.
Margaret Anne O'Boyle
Menlo Park, CA
- Bar #
- 4820718
- Admitted
- 2010 · 16 yrs
- Law school
- University of Connecticut
- Firm
- Grail, Inc.
Seosamh Aodan O Murchadha
Alexandria, VA
- Bar #
- 4961710
- Admitted
- 2011 · 15 yrs
- Law school
- National University of Ireland
- Firm
- Sap America, Inc
Brendan Daniel O'Brien
Manchester, NH
- Bar #
- 4913786
- Admitted
- 2011 · 15 yrs
- Law school
- Boston College Law School
- Firm
- Primmer Piper Eggleston & Cramer PC
Katharine Ellen O'Banion
New York, NY
- Bar #
- 5005137
- Admitted
- 2012 · 14 yrs
- Law school
- Yale Law School
- Firm
- Davis Polk & Wardwell LLP
Brett John O'Brien
Washington, DC
- Bar #
- 4993663
- Admitted
- 2012 · 14 yrs
- Law school
- Case Western Reserve University
- Firm
- National Security Law Firm, LLC
Caitlin Teresa O'Brien
New York, NY
- Bar #
- 5062492
- Admitted
- 2012 · 14 yrs
- Law school
- Yale
- Firm
- Blackrock, Inc.
Deaglan Micheal O Dubhda
Dublin D02 Rf29
- Bar #
- 5253927
- Admitted
- 2014 · 12 yrs
- Law school
- Nui Galway
- Firm
- Barclays Bank Ireland Plc
Christopher Anthony O'Brien
Lees Summit, MO
- Bar #
- 5301957
- Admitted
- 2015 · 11 yrs
- Law school
- Pace Law School
- Firm
- Christopher A. O Brien, Pa
Michael Joseph O'Beirne, III
Hackensack, NJ
- Bar #
- 5451877
- Admitted
- 2016 · 10 yrs
- Law school
- Albany Law School of Union University
- Firm
- Harwood Lloyd LLP
Danielle Marie O'Boyle
Kew Gardens, NY
- Bar #
- 5396270
- Admitted
- 2016 · 10 yrs
- Law school
- St. John'S University School of Law
- Firm
- Queens County District Attorney'S Office
Alyssa Patricia O'Brien
NY attorney
- Bar #
- 5426838
- Admitted
- 2016 · 10 yrs
- Law school
- Brooklyn Law School
Casey Merriam O'Brien
New York, NY
- Bar #
- 5414446
- Admitted
- 2016 · 10 yrs
- Law school
- Roger Williams University School of Law
- Firm
- Amazon
Allan Spence O'Brien
Albany, NY
- Bar #
- 5493085
- Admitted
- 2017 · 9 yrs
- Law school
- Albany Law School
- Firm
- Albany Parking Authority
Allison Louise O'Brien
NY attorney
- Bar #
- 5502729
- Admitted
- 2017 · 9 yrs
- Law school
- Yeshiva University Cardozo School of Law
Caitlin Kallen O'Brien
Albany, NY
- Bar #
- 5478631
- Admitted
- 2017 · 9 yrs
- Law school
- Albany Law School
- Firm
- Albany County
David K. O'Boyle
NY attorney
- Bar #
- 5582440
- Admitted
- 2018 · 8 yrs
- Law school
- City University of New York School of Law
Annie Mahoney O'Brien
New York, NY
- Bar #
- 5633904
- Admitted
- 2018 · 8 yrs
- Law school
- Catholic University of America Columbus School of Law (dc)
- Firm
- Memorial Sloan Kettering Cancer Center
Eoin Carey O' Mahony
New York, NY
- Bar #
- 5692561
- Admitted
- 2019 · 7 yrs
- Law school
- University College Cork, Ireland
- Firm
- Nyc Department of Housing Preservation and Development
Brendan James O'Brien
New York, NY
- Bar #
- 5687223
- Admitted
- 2019 · 7 yrs
- Law school
- St. Johns University School of Law
- Firm
- Sullivan & Worcester LLP
Alice Anne O'Brien
Washington, DC
- Bar #
- 5807367
- Admitted
- 2020 · 6 yrs
- Law school
- George Washington University Law School
- Firm
- Surface Transportation Board
Amy Margaret O'Brien
Washington, DC
- Bar #
- 5793567
- Admitted
- 2020 · 6 yrs
- Law school
- Pace Law School
- Firm
- Dla Piper LLP (us)
Austin Patrick O'Brien
Atlanta, GA
- Bar #
- 5766944
- Admitted
- 2020 · 6 yrs
- Law school
- Fordham University School of Law
- Firm
- Hill, Kertscher & Wharton, LLP
Bryan Paul O'Brien, III
NY attorney
- Bar #
- 5873823
- Admitted
- 2021 · 5 yrs
- Law school
- Duke University School of Law
Jessica Kate O Neill
Brussels
- Bar #
- 5985064
- Admitted
- 2022 · 4 yrs
- Law school
- Trinity College Dublin
- Firm
- Wilson Sonsini Goodrich & Rosati
Joseph Marse O'Bell
Austin, TX
- Bar #
- 5935143
- Admitted
- 2022 · 4 yrs
- Law school
- Thomas M Cooley Law School
- Firm
- Bush, Rudnicki, Shelton, PC
Audrey Gwynn O'Brian
Brooklyn, NY
- Bar #
- 6015416
- Admitted
- 2023 · 3 yrs
- Law school
- Case Western Reserve University School of Law
- Firm
- New York City Law Department
Darragh O'Boyle
New York, NY
- Bar #
- 6113799
- Admitted
- 2024 · 2 yrs
- Law school
- Trinity College Dublin
- Firm
- McCallion & Associates LLP
Megan Mary O'Boyle
Woodbridge, NJ
- Bar #
- 6196976
- Admitted
- 2025 · 1 yr
- Law school
- Seton Hall University School of Law
- Firm
- Plymouth Rock Assurance
Chase Connor O'Brien
NY attorney
- Bar #
- 6296370
- Admitted
- 2026 · 0 yrs
- Law school
- George Washington University Law School
Disciplinary actions
See New York attorney disciplinary actions (23,237 attorneys currently disbarred or suspended of record).
Frequently asked questions
How do I check if a lawyer is licensed in New York?
Search their name or bar number in the lookup above. It returns the official NYS Office of Court Administration (OCA) Attorney Registration Unit record, including current license status and admission year. If no record comes back, the person may not be licensed in New York.
How many attorneys are registered in New York?
372,587 attorneys are registered with the NYS Office of Court Administration (OCA) Attorney Registration Unit, and 333,133 are on active status. Every record here shows the official license status and as-of date.
Is New York attorney discipline public?
Yes. License status, including disbarment and suspension of record, is public information published by the NYS Office of Court Administration (OCA) Attorney Registration Unit. 23,237 New York attorneys are currently disbarred or suspended of record.
What is a bar number?
A bar number is the unique ID the NYS Office of Court Administration (OCA) Attorney Registration Unit assigns to each admitted attorney. It is the most reliable way to confirm you are looking at the right person, especially for common names.
Does this cost anything?
No. Looking up a New York attorney's license and disciplinary standing on this site is free and requires no account.
Data sources & last updated
- Licensing roster & status: NYS Office of Court Administration (OCA) Attorney Registration Unit. Published roster figure (end of CY2024).
- Resident-attorney benchmark: ABA National Lawyer Population Survey 2024.
- Data on this page as of 2026-06-13 (last roster ingest).
This site republishes official public records and is not legal advice, a lawyer referral service, or a consumer reporting agency. Information here may not be used to make decisions about employment, tenancy, or credit (FCRA). Records are shown as published by their official sources and may contain errors or be out of date; consult the linked official source to verify. To correct or dispute a record, contact the licensing authority of record.