The 2021 Big Ten women's soccer tournament was the postseason women's soccer tournament for the Big Ten Conference for the 2021 season held from October 31 to November 7, 2021.
The seven-match tournament took place at the home side of the higher seeded team and teams were seeded based on regular season conference play.
This was the third overall title for Michigan and first for head coach Jennifer Klein.
A tiebreaker was required to determine which school would host a Quarterfinal between Michigan State and Iowa as both teams finished the regular season with 16 points.
Michigan State won the tiebreaker by virtue of their 2–1 victory at Iowa on October 23.