The 2021 Oregon State Beavers baseball team represented Oregon State University in the 2021 NCAA Division I baseball season.

The Beavers played their home games at Goss Stadium at Coleman Field and were members of the Pac-12 Conference.

The team was coached by Mitch Canham in his 2nd season at Oregon State.

[2] The Beavers entered the season unranked and picked to finish 4th in the Pac-12 Conference coaches preseason baseball poll.

[3] Jake Mulholland passed Kevin Gunderson for most saves in Oregon State history when he threw his 38th career save in a 2–1 win against California.