Mark T. Langston

Mark T. Langston

Boulder, Colorado

Mark Thomas Langston was born on January 3, 1959 in Columbus, Ohio, and grew up near Washington, D.C. After graduating from Winston Churchill High School in Potomac, Maryland (Class of 1977), he moved to Colorado, where he has lived since. He is married to Boulder Family Law Attorney Carol Glassman , and they have a 15-year old son. When not defending the criminally accused, Mark is involved in supporting his son's academic and athletic activities, and enjoys skiing, bicycling, baseball, travel, photography, music and cooking.

Mark is active in his community, and serves on the Boards of Directors for the Boulder Valley YMCA and Diamond Baseball of Boulder . Mark and his family are members or supporters of the University of Colorado Alumni Association and Buff Club, Temple Har Hashem, Impact on Education, Boulder High School Panther Club, United States Ski Team, CUBAN Ski Team, Rocky Mountain Freestyle, Boulder Yacht Club, Winter Park Competition Center, Boulder Mountain Bike Alliance, Boulder Jazz Dance Workshop, Colorado Ballet, Hospice of Boulder County, Foothills United Way, Boulder Shelter for the Homeless, Emergency Family Assistance, Community Food Share, and the Sister Carmen Center.

Areas of Practice

  • Criminal
  • Felony and Misdemeanor Offenses
  • DUI and Driver's License Revocation
  • Professional Disciplinary Actions
  • Post-Conviction Matters

Bar Admissions

  • Colorado, 1985
  • U.S. District Court District of Colorado
  • U.S. Court of Appeals 10th Circuit


  • University of Colorado School of Law, Boulder, Colorado
    • J.D. - 1985
  • University of Colorado at Boulder
    • B.A. - 1981
  • Winston Churchill High School, Potomac, Maryland - 1977

Professional Associations and Memberships

  • National Association of Criminal Defense Lawyers (NACDL), Member
  • Colorado Criminal Defense Bar (CCDB), Life Member, 1985 - Present
  • Colorado Criminal Defense Bar (CCDB), Past President, 2004 - 2005
  • Boulder County Bar Association, Member
  • Boulder County Bar Association, Chair, Bar-Media Committee
  • Boulder County Bar Association, Bar-Media Committee, Chair
  • Boulder County Bar Association, Professionalism Committee, Chair
  • Colorado Bar Association, Member
  • American Constitutional Law Society, Member
  • Faculty of Federal Advocates, Member
  • Boulder County Bar Association, Criminal Law Committee, Co-Chair
  • Colorado Criminal Defense Bar, Board of Directors, 2001 - 2005
  • Colorado Criminal Defense Bar, Treasurer, 2002 - 2003
  • Colorado Criminal Defense Bar, Chair, Legislative Committee, 2003 - 2004
  • Colorado Criminal Defense Bar, Member, 1986 - Present
  • Boulder County Bar Association, Criminal Law Section, Chair

Pro Bono Activities

  • Colorado Criminal Justice Reform Coalition, Member
  • Coloradans for Alternatives to the Death Penalty, Member
  • Boulder County Bar Foundation, Member
  • Legal Aid Foundation of Colorado, Member
  • YMCA of Boulder Valley, Board of Directors
  • University of Colorado Alumni Association
  • Impact on Education
  • Boulder High School Panther Club
  • United States Ski Team
  • Rocky Mountain Freestyle
  • Winter Park Competition Center
  • Boulder Mountainbike Alliance
  • Boulder Jazz Dance Workshop
  • Colorado Ballet
  • Hospice of Boulder County
  • Foothills United Way, Boulder Shelter for the Homeless
  • Emergency Family Assistance
  • Community Food Share
  • Sister Carmen Community Center