1990 Southwest Conference baseball tournament
The 1990 Southwest Conference baseball tournament was the league's annual postseason tournament used to determine the Southwest Conference's automatic bid to the 1990 NCAA Division I baseball tournament. The tournament was held from May 17 through 19 at Disch–Falk Field on the campus of The University of Texas in Austin, Texas.
The number 2 seed went 3–0 to win the team's 9th 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.| Place | Team | Conference | Conference | Conference | Conference | Overall | Overall | Overall | Seed |
| Place | Team | W | L | % | GB | W | L | % | Seed |
| 1 | 16 | 5 | - | 47 | 15 | 1 | |||
| 2 | 15 | 5 | 0.5 | 51 | 17 | 2 | |||
| 3 | 12 | 9 | 4 | 44 | 23 | 3 | |||
| 4 | 11 | 9 | 4.5 | 33 | 29 | 4 | |||
| 5 | 11 | 10 | 5 | 43 | 17 | - | |||
| 6 | 9 | 12 | 7 | 33 | 19 | - | |||
| 7 | 5 | 16 | 11 | 31 | 29 | - | |||
| 8 | 4 | 17 | 12 | 27 | 32 | - |