The 1945 NCAA basketball tournament was an eight-team single-elimination tournament to determine the national champion of men's National Collegiate Athletic Association (NCAA) college basketball.
It began on March 22, 1945, and ended with the championship game on March 27 in New York City.
Oklahoma A&M, coached by Henry Iba, won the national title with a 49–45 victory in the final game over NYU, coached by Howard Cann.
Bob Kurland of Oklahoma A&M was named the tournament's Most Outstanding Player.
The following are the sites selected to host each round of the 1945 tournament: * – Denotes overtime period