Dr. Marsha M. Linehan, the influential American psychologist who transformed mental health treatment through the development of Dialectical Behavior Therapy (DBT), has died at the age of 83. Her death was reported on November 13, 2026, by professional organizations and colleagues who celebrated her groundbreaking contributions to psychology.
Linehan died on November 10, 2026, in Seattle, Washington. Her passing marks the loss of a researcher, educator and clinician whose work changed how mental health professionals approach people experiencing severe emotional distress, suicidal behavior and borderline personality disorder.
Who Was Marsha Linehan?
Born on May 5, 1943, in Tulsa, Oklahoma, Linehan became one of the most respected figures in clinical psychology. She served as a professor of psychology at the University of Washington and directed its Behavioral Research and Therapy Clinics.
Her professional journey was shaped partly by her own experiences with serious psychological distress during her teenage years. In 2011, she publicly discussed her history of hospitalization and emotional suffering, explaining how those experiences influenced her determination to help people facing similar struggles.
Her Groundbreaking Contribution to Mental Health
Linehan is best known for developing Dialectical Behavior Therapy, a scientifically researched treatment initially designed to help people experiencing chronic suicidal behavior and borderline personality disorder.
DBT combines behavioral strategies, emotional regulation, mindfulness and interpersonal skills. Its central philosophy brings together two important ideas: accepting a person’s present circumstances while working toward meaningful change.
Her research helped establish DBT as an evidence-based treatment that has since been adapted for a wider range of mental health challenges.
Her influence extended beyond clinical practice through books, research publications, professional training and the establishment of Behavioral Tech, an organization dedicated to educating clinicians in DBT.
Marsha Linehan’s Personal Legacy
In her memoir, Building a Life Worth Living, Linehan described the personal experiences and commitment that shaped her professional mission.
Her message emphasized that people experiencing severe psychological suffering deserve compassionate, effective treatment and the opportunity to build meaningful lives.
Throughout her career, she received numerous professional honors for her contributions to psychology and suicide prevention research.
Tributes Following Her Death
Following news of her passing, colleagues, professional organizations and mental health practitioners shared tributes recognizing her influence.
The University of Washington’s Behavioral Research and Therapy Clinics continues to document her academic contributions, while organizations dedicated to DBT have pledged to carry her work forward.
Marsha Linehan leaves behind a lasting legacy in psychological research and mental health care. Her work continues to influence therapists, researchers and individuals seeking support around the world.