Bernard Charles Glueck Sr. (December 10, 1884 - October 5, 1972) was a Polish-American forensic psychiatrist and psychoanalyst.
He established the first prison psychiatric clinic and was an expert witness in the Leopold and Loeb trial.
He earned his medical degree from Georgetown University in 1909, then started a career in public health.
In 1924, Clarence Darrow sought out Glueck and two other alienists to testify for the defense the kidnapping/murder trial of Nathan Leopold and Richard Loeb.
His son Bernard Glueck Jr. (1914–1999) was also a psychiatrist, affiliated with the Institute for Living in Connecticut.