Diego J. Pena

Pena Arbitration & Mediation Group

Dallas, Texas 75001


Commercial, Contract, Discrimination, Employment, Labor, Oil and Gas, Sexual Harassment, Wage and Hour, Workplace, Wrongful Termination

Diego J. Peña currently serves as a full-time arbitrator and mediator. He began his practice in San Antonio, Texas as a commercial and business litigator. As an attorney for more than 36 years, Mr. Peña has represented individuals, small to medium businesses and Fortune 500 corporations in state and federal courts. 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, sexual harassment and hostile work environment, real estate disputes, water rights claims, environmental issues, banking matters. He has 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 more than 29 years, Mr. Peña personally tried more than 85 highly specialized labor arbitrations ranging from contract interpretation and special interest grievances to just cause suspensions or dismissals. In his years of working with Company representatives and Union officials, Mr. Peña earned an excellent for professionalism and courtesy. He was also highly respected for his ability to focus on the main issues in dispute and for negotiating fair and reasonable resolutions. In 2008, the American Arbitration Association invited Mr. Peña to join its Employment Panel as an Arbitrator.

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 is able to 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 J. Peña is a seventh generation Texan, who currently lives in Arlington, Texas, along with his wife Pia. They have three adult children and one grandson. They love to spend time together as a family and travel.

Diego Peña’s Personal Statement:

“From an early age, I knew I was going to be a lawyer—probably because I got hit on the head too many times while playing baseball! While trying cases, I was always mindful of the big picture. Seeing the big picture helped me earn the respect of my clients, legal colleagues, opposing counsel, judges, juries and arbitrators.

Before choosing an arbitrator or a mediator, advocates need to make sure that the neutral they select will treat their clients with dignity and respect. Advocates need to insure that the neutral they select will listen to their clients and appreciate their arguments. Unlike other neutrals who insist on talking or telling “war stories,” I prefer to listen and ask questions.

Litigation is expensive. For that reason, I take my responsibility as a neutral seriously. My job is to help parties understand the big picture so that they can resolve their disputes positively, efficiently and economically.

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


M.A. (History), University of Texas at San Antonio, 2005

J.D., University of Texas at Austin School of Law, 1982 
Director, Legal Research Board

B.A., University of Notre Dame, 1980

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

Legal Specialties and Certifications

Mediators of America, Adv. Family Law Mediation Training, 2019

University of Texas Center for Public Resolution, Adv. Mediation Training, 2018

Mediators of America, Basic Mediation Training, 2018

American Arbitration Association, Employment Arbitration, 2008



5601 Bridge Street 
Fort Worth, TX 76112 

Map and Driving Directions

Phone: 817-575-9854
Email: [email protected]