This is a list of Big West Conference champions in college baseball.
The team with the best record is named champion, and wins the league's automatic bid to the NCAA Division I Baseball Championship.
The conference began sponsoring baseball under the name Pacific Coast Athletic Association in 1970 and crowned a champion each year through 1976.
This arrangement lasted through the 1984 season, when the league once again began sponsoring baseball for its members.
[1] in 2025, the league is bringing back a tournament to determine its champion.