1981 Southwest Conference baseball tournament

The 1981 Southwest Conference baseball tournament was the league's annual postseason tournament used to determine the Southwest Conference's (SWC) automatic bid to the 1981 NCAA Division I baseball tournament. The tournament was held from May 15 through 17 at Disch–Falk Field on the campus of The University of Texas in Austin, Texas.

The number 1 seed Texas Longhorns went 3–0 to win the team's third SWC tournament under head coach Cliff Gustafson.

Format and seeding
The tournament featured the top four finishers of the SWC's 8 teams in a double-elimination tournament.