Thích Thiên-Ân (釋天恩) (September 22, 1925—November 23, 1980) was a teacher and Buddhist monk of Vietnamese Thiền (Zen) Buddhism and was active in the United States from 1966 to 1980. He was ordained at Chua Chau Lam in Hue, Vietnam. Thích Thiên-Ân came to the United States from Vietnam in the summer of 1966 as an exchange professor. He taught philosophy at the University of California, Los Angeles. After discovering that he was not only a renowned scholar, but a Zen Buddhist monk, as well, his students convinced him to teach Zen meditation and to start a Buddhist study group on the UCLA campus.