The Horizon League women's basketball tournament is the conference championship tournament in women's basketball for the Horizon League. It is a single-elimination tournament involving all of the 10 league schools, and seeding is based on regular-season records with head-to-head match-up as a tie-breaker. The winner receives the conference's automatic bid to the NCAA women's basketball tournament.

In the first round, the #7 seed faces off against the #10 and the #8 faces off against the #9. The #1 and #2 seeds play the winner of those games in the quarterfinals, while the #3 seed faces off against the #6 seed and the #4 seed faces off against the #5 seed.

The tournament has been held since 1989.^[1]

• Northern Kentucky, Oakland, Purdue Fort Wayne, Robert Morris, and Youngstown State have not yet won a Horizon League tournament.
• Dayton, Duquesne, Evansville, Illinois Chicago, La Salle, Loyola Chicago, Marquette, Saint Louis, and Valparaiso never won the tournament as Horizon League members.
• Schools highlighted in pink are former Horizon League members.

• Horizon League men's basketball tournament