1955 NCAA swimming and diving championships

The 1955 NCAA swimming and diving championships were contested in March 1955 at Billings Natatorium at Miami University in Oxford, Ohio at the 19th annual NCAA-sanctioned swim meet to determine the team and individual national champions of men's collegiate swimming and diving among its member programs in the United States.

Ohio State retained the national title, the Buckeyes' ninth, after finishing thirty-nine points ahead of Michigan and Yale in the team standings.

Program

 * The 100 yard butterfly was dropped from the program, although it would be re-added two years later in 1957.
 * The 200 yard breaststroke was added to the program. This would be the first appearance of a breaststroke event at the NCAA championships.

Team standings

 * (H) = Hosts
 * (DC) = Defending champions
 * Italics = Debut appearance