1981 Mid-American Conference baseball tournament
The 1981 Mid-American Conference baseball tournament took place from May 16 to 18 of that year. The top four regular season finishers of the league's ten teams met in the double-elimination tournament held at Bill Theunissen Stadium in Mount Pleasant, Michigan. This was the first time the Mid-American Conference held a postseason tournament to determine a champion. Fourth seeded won the first tournament to earn the conference's automatic bid to the 1981 NCAA Division I baseball tournament.
Seeding and format
The top four finishers were seeded one through four based on conference winning percentage only. The teams played a double-elimination tournament.| Team | W | L | Tie | PCT | GB | Seed |
| 13 | 3 | 0 | .813 | – | 1 | |
| 14 | 3 | 1 | .806 | .5 | 2 | |
| 12 | 5 | 1 | .694 | 2 | 3 | |
| 9 | 7 | 0 | .563 | 4 | 4 | |
| 8 | 9 | 0 | .471 | 5.5 | – | |
| 6 | 10 | 2 | .389 | 8 | – | |
| 5 | 8 | 0 | .385 | 6.5 | – | |
| 5 | 11 | 0 | .313 | 8 | – | |
| 5 | 13 | 0 | .278 | 9 | – | |
| 4 | 12 | 0 | .250 | 9 | – |