John Patrick Mahoney
John P. Mahoney, Esq., Attorney at Law • Washington, DC
Employment LaborEmployment LawLabor & Employment
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Contact
Email
Phone
(833) 965-2518
Twitter/X
Address
Ronald Reagan Building & International Trade Center, Washington, DC, 20004, US
Professional
About
John P. Mahoney is an esteemed attorney based in Washington, DC, specializing in Employment Law, Labor, and National Security Clearance Law. With a robust focus on federal employment law, Mr. Mahoney expertly litigates cases involving employment discrimination, EEOC complaints, MSPB appeals, and whistleblower retaliation, representing a diverse clientele that includes federal employees, contractors, agencies, unions, and employee associations. Recognized nationally for his legal acumen, Mr. Mahoney holds a Preeminent® Rating from Martindale-Hubbell® and was honored as a 2017 Top Rated Lawyer in Labor & Employment Law. His extensive experience is complemented by his previous role as Vice Chair and administrative judge with the Government Accountability Office's (GAO) Personnel Appeals Board (PAB), where he gained invaluable insights into the nuances of employment disputes within the federal sector. Mr. Mahoney is widely regarded for his ability to provide intelligent, strategic solutions while maintaining a compassionate approach to advocacy. His impressive track record of success has established him as a trusted advocate for clients navigating complex legal issues in the employment sector. Through his dedication to protecting the rights of workers and promoting fair labor practices, John P. Mahoney continues to make a significant impact in the field of employment law. To learn more about his practice and accomplishments, visit his profile page.
About Employment Labor Law
Employment and labor attorneys handle workplace legal matters including discrimination, wrongful termination, and wage disputes. They represent both employees and employers. Common matters include wrongful termination, discrimination, harassment, wage disputes.
Credentials
Education
1993 Catholic University of America JD - Juris Doctor 1990 Assumption College BA - Bachelor of Arts
Languages
English | Spanish | Portuguese
Recognition & Involvement
Awards
2021 Federal Employment Lawyer of the Year in Washington D.C., Corporate INTL 2021 Federal Employment Law - Lawyer of the Year in Washington D.C., Global Law Experts 2021 Featured Attorney, Lawyers of Distinction 2021 Top Attorneys, National Law Journal 2021 Top Lawyer, American Lawyer
Publications
2011 National Law Journal What Rights to Privacy Do Federal Employees Have? N/A National Employee Rights Institute Federal Employees Legal Survival Guide
Associations
American Bar Association Member Metropolitan Washington Employment Lawyers Association Member 2009 - 2014 District of Columbia Bar, Labor and Employment Law Co-chair 2003 - 2004 District of Columbia Bar, Labor and Employment Law Past Chair
Speaking
2009 D.C. Bar Association How to take an effective deposition- CLE Attendee
Other Employment Labor Attorneys in Washington, DC
Updated: Sep 21, 2026