The 2025 Big Ten women's basketball tournament (branded as the 2025 TIAA Big Ten Women's Basketball Tournament for sponsorship reasons) is a postseason women's basketball tournament for the Big Ten Conference of the 2024–25 NCAA Division I women's basketball season which will take place from March 5–9, 2025.
The tournament will be held at the Gainbridge Fieldhouse in Indianapolis, Indiana.
This will be the first season in the current tournament format as the conference expanded to 18 teams.
The top 15 Big Ten schools will participate in the tournament.
Teams will be seeded by conference record, with a tiebreaker system used to seed teams with identical conference records.