Louis Jolyon "Jolly" West (October 6, 1924 – January 2, 1999) was an American psychiatrist whose work focused particularly on cases where subjects were "taken to the limits of human experience". In 1954, at the age of 29 and with no previous tenure-track appointment, he became a full professor and chair of psychiatry at the University of Oklahoma College of Medicine. From 1969 to 1989, he served as chair of psychiatry at the University of California, Los Angeles School of Medicine and the UCLA Neuropsychiatric Institute.