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Diego J. Peña

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Phone: 817-575-9854

5601 Bridge St
Fort Worth, Texas 76112

Diego J. Peña in Manhole Diego J. Peña currently serves as a full-time arbitrator and mediator. Since establishing the Peña Arbitration & Mediation Group in 2019, he has mediated and arbitrated more than 50 cases.

He began his career in San Antonio, Texas as a business and commercial litigator. As an attorney for more than 37 years, Mr. Peña has represented individuals, small to medium businesses and Fortune 500 corporations in state and federal courts, mediations and arbitrations.

He has litigated cases involving consumer disputes, contracts, personal injury, wrongful death, insurance claims and disputes, federal and state constitutional law claims, civil rights, labor & employment claims, religious discrimination, retaliation, sexual harassment and hostile work environment, real estate disputes, water rights claims, environmental issues and banking disputes.

He has personally tried more than 50 cases to verdict/judgment and has argued or appeared in more than 20 appellate cases before state and federal appellate courts, including the U.S. Fifth Circuit Court of Appeals and the United States Supreme Court. He has also represented clients before the Texas Workforce Commission, the Texas Commission on Human Rights, the National Labor Relations Board, the EEOC, the Texas Real Estate Commission, the Texas Railroad Commission and other administrative boards.

In 1989, Mr. Peña joined the Southwestern Bell Telephone Company Legal Department. For approximately 30 years, Mr. Peña personally tried more than 85 highly specialized labor arbitrations. In his years of working with Company representatives and Union officials, Mr. Peña earned an excellent reputation for integrity, professionalism and courtesy.

Throughout his career, Mr. Peña represented litigants in more than 300 mediations. As a result of his many years of experience as an attorney and arbitrator, Mr. Peña can quickly identify the relative strengths and weaknesses of a case and articulate his observations positively and constructively. While no one can accurately predict what a judge, jury or arbitrator will do in any case, Mr. Peña will provide an honest and fair assessment of a party’s claims and defenses and case and will work will all parties to achieve a resolution.

Diego Peña’s Personal Statement:

“I am a professional mediator and arbitrator. Before choosing a mediator, advocates need to know the neutral they select will treat their clients with dignity and respect. Advocates need a mediator who will listen. I ask questions. I work hard to find workable resolutions. Litigation is expensive. For that reason, I take my responsibility as a mediator seriously.

I want to help you resolve your disputes. I look forward to your call.”


J.D., University of Texas at Austin School of Law

B.A., University of Notre Dame

M.A. (History), University of Texas at San Antonio

Courts and Jurisdictions Admitted to Practice U.S. Supreme Court
State of Texas
U.S. Fifth Circuit Court of Appeals
US District Court – Southern District of Texas
US District Court - Western District of Texas
US District Court – Northern District of Texas
US District Court – Eastern District of Texas
Professional & Bar Association Memberships

State Bar of Texas
Member Since: 1983

San Antonio Bar Association
Member Since: 1983
Former Director

Dallas Bar Association
Member Since: 2009

Tarrant County Bar Association
Member Since: 2018

Arlington Bar Association
Member Since: 2018

American Inns of Court – San Antonio Chapter
Former President

San Antonio Catholic Lawyers Guild
Member Since: 2000

St. Thomas More Society – Dallas Catholic Lawyers
Member Since: 2010

San Antonio Young Lawyers Association
Former Vice President

Texas Bar Foundation
Member Since: 2005

San Antonio Bar Foundation
Sustaining Member and Former Trustee

College of the State Bar
Member Since: 1990

Federal Bar Association – San Antonio Chapter
Former Director

Arbitration & Mediation Specialties and Certifications

FINRA, Public Arbitrator

Federal Mediation and Conciliation Service (FMCS), Labor Arbitrator

Mediators of America, Adv. Family Law Mediation Training

University of Texas Center for Public Resolution, Adv. Mediation Training

Mediators of America, Basic Mediation Training

American Arbitration Association, Labor Arbitration & Employment Arbitration.