The 2021 Big West Conference men's soccer tournament was the postseason men's soccer tournament for the Big West Conference held on November 3 through 12, 2021.
The six-team single-elimination tournament consisted of three rounds based on seeding from regular season conference play.
[4] This was the second Big West tournament title for the UC Santa Barbara program, both of which have come under head coach Tim Vom Steeg.
UC Riverside and Sacramento State tied for sixth in the regular season standings with identical 3–4–2 records.
UC Riverside earned the sixth and final seed by beating Sacramento State 2–0 in the team's regular season matchup.