2012 Horizon League baseball tournament
The 2012 Horizon League baseball tournament took place from May 23 through 27. All six of the league's teams met in the double-elimination tournament held at UIC's Les Miller Field. Top seeded won their first Horizon League Championship and earned the conference's automatic bid to the 2012 NCAA Division I baseball tournament.
Seeding
The league's six teams are seeded one through six based on winning percentage, using conference games only.| Team | W | L | PCT | GB | Seed |
| 22 | 8 | .733 | – | 1 | |
| 20 | 10 | .667 | 2 | 2 | |
| 18 | 11 | .621 | 3.5 | 3 | |
| 12 | 17 | .414 | 9.5 | 4 | |
| 10 | 20 | .333 | 12 | 5 | |
| 7 | 23 | .233 | 15 | 6 |
All-Tournament Team
The following players were named to the All-Tournament Team.| POS | Name | School |
| P | Blake Aquadro | Youngstown State |
| P | Tyler Deetjen | Valparaiso |
| C | Corey Davis | Wright State |
| 1B | Alex Grunenwald | UIC |
| 2B | Tanner Vavra | Valparaiso |
| SS | Spencer Mahoney | Valparaiso |
| 3B | Joe Betcher | UIC |
| OF | Jonathan Capasso | Milwaukee |
| OF | Mark Johnson | Valparaiso |
| OF | Alex De LaRosa | UIC |
| U | John Loeffler | Valparaiso |