List of Famous people who died at 91

Yves Martin was a Canadian sociologist. He was the laity rector at the Université de Sherbrooke and was one of the founders of the Institut de recherche Robert-Sauvé en santé et en sécurité du travail.

John Larch was an American radio, film, and television actor.

Louis Meyer was an American Hall of Fame race car driver who was the first three-time winner of the Indianapolis 500.

Bishop Isidore Borecky was a Ukrainian-born Canadian Ukrainian Greek Catholic hierarch. He served as the Titular Bishop of Amathus and the first Eparchial Bishop of the new created Ukrainian Catholic Eparchy of Toronto from 17 January 1948 until his retirement on 16 June 1998.

Herbert Hirche was a German architect and furniture and product designer.

Cyril Domb FRS was a British-Israeli theoretical physicist, best known for his lecturing and writing on the theory of phase transitions and critical phenomena of fluids. He was also known in the Orthodox Jewish world for his writings on science and Judaism.