The following is a list of schools that participate in NCAA Division I baseball. In the 2026 season, 304 Division I schools competed. These teams compete to go to the 64-team Division I baseball tournament and then to Omaha, Nebraska, and Charles Schwab Field, for the eight-team Men's College World Series (MCWS).

Conference affiliations are current for the upcoming 2027 NCAA baseball season. Years of conference changes, indicated in footnotes, reflect baseball seasons, which take place in the calendar year after a conference change takes effect. Numbers of appearances in the NCAA Tournament and MCWS are current through the 2026 season, and MCWS titles are also current through the same college baseball season.

Division I programs