William Glasser, American psychiatrist and author (b. 1925)
William Glasser (May 11, 1925 – August 23, 2013) was an American psychiatrist.

Glasser was the developer of W. Edwards Deming's workplace ideas, reality therapy and choice theory. His innovations for individual counseling, work environments and school, highlight personal choice, personal responsibility and personal transformation. Glasser positioned himself in opposition to conventional mainstream psychiatrists, who focus instead on classifying psychiatric syndromes as "illnesses" and prescribe psychotropic medications to treat mental disorders.Based on his wide-ranging and consulting clinical experience, Glasser applied his theories to broader social issues, such as education, management, and marriage, to name a few. As a public advocate, Glasser warned the general public of potential detriments caused by older generations of psychiatry, wedded to traditional diagnosing of patients as having mental illnesses (brain disorders) and prescribing medications. In his view, patients simply act out their unhappiness and lack of meaningful personal connection with important people in their life. Glasser advocated educating the general public about mental health issues; offering, post-modern frameworks for finding and following healthy therapeutic direction.