The 1990 NCAA Division I Men's Swimming and Diving Championships were contested in March 1990 at the Indiana University Natatorium in Indianapolis, Indiana at the 67th annual NCAA-sanctioned swim meet to determine the team and individual national champions of Division I men's collegiate swimming and diving in the United States. The men's and women's titles would not be held at the same site until 2006. Texas topped the team standings, finishing 83 points ahead of USC. It was the Longhorns' third consecutive and fourth overall title and the fourth for coach Eddie Reese.