The 1974 NCAA Division I baseball tournament was played at the end of the 1974 NCAA Division I baseball season to determine the national champion of college baseball. The tournament concluded with eight teams competing in the College World Series, a double-elimination tournament in its twenty-eighth year. Eight regional districts sent representatives to the College World Series with preliminary rounds within each district serving to determine each representative. These events would later become known as regionals. Each district had its own format for selecting teams, resulting in 28 teams participating in the tournament at the conclusion of their regular season, and in some cases, after a conference tournament.^[1] The twenty-eighth tournament's champion was Southern California, coached by Rod Dedeaux. The Most Outstanding Player was George Milke of Southern California.

The opening rounds of the tournament were played across eight district sites across the country, each consisting of between two and six teams.^[2] The winners of each District advanced to the College World Series.

Bold indicates winner.

• Southern California becomes the first team to win five consecutive College World Series.
• Tom Petroff becomes the first head coach to lead two different schools to the College World Series; he led Rider University to Omaha in 1967.

• 1974 NCAA Division II baseball tournament
• 1974 NAIA World Series