The 2015 Horizon League women's basketball tournament, held from March 9–15, concluded the 2014–15 season of the Horizon League.
All 9 Horizon League schools participated in the tournament.
Teams were seeded by 2014–15 Horizon League season record.
The top 7 teams received a first-round bye.
Seeding for the tournament was determined at the close of the regular conference season: