Osborne Bryan "Ozzie" Cowles (August 25, 1899 – August 29, 1997) was an American basketball player and coach. He was the head men's basketball coach at Carleton College (1924–1930), River Falls State Teachers College (now University of Wisconsin–River Falls) (1932–1936), Dartmouth College (1936–1946), University of Michigan (1946–1948), and University of Minnesota (1948–1959). He was also the head baseball coach and assistant basketball and football coach at Iowa State Teachers College, now the University of Northern Iowa during 1923–24. In 30 seasons as a collegiate head basketball coach, Cowles compiled a record of 416–189 (.688). His teams competed in the NCAA basketball tournament six times. At the time of his retirement in 1959, Cowles ranked among the top 15 college basketball coache