The 2023 Oregon State Beavers baseball team represented Oregon State University in the 2023 NCAA Division I baseball season. The Beavers played their home games at Goss Stadium at Coleman Field as members of the Pac-12 Conference. The team was led by Pat Casey Head Baseball Coach Mitch Canham in his fourth season at Oregon State.
Preseason
The Beavers were ranked in the preseason Top-25 by only three of the six major poll organizations and were picked to finish third in the Pac-12 preseason coaches poll despite ending the prior season ranked 10th in the final D1 poll. The team lost 18 players from the 2022 squad, including Major League Baseball 1st round pick and National Pitcher of the Year Award winner Cooper Hjerpe, but signed one of the top recruiting classes in the nation.
Regular season
Following a three-game sweep of Coppin State, Trent Sellers was named the Pac-12's Pitcher of the Week and Gavin Turley was selected as conference Player of the Week.
Mitch Canham reached his 100th win as head coach on March 7 in a win over San Diego, becoming the fifth Beaver head coach to reach that milestone.
Travis Bazzana set the all-time Oregon State record for most steals in a game with five against the Seattle Redhawks. The previous record of four steals in a single game was set by Steve Lyons in 1979 and matched by David Anderson in 1991. Bazzana later broke the single-season steal record when he recorded his 30th steal in a game against Utah.
Roster
Schedule and results
! style="" | Regular Season
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| Feb 17 || vs. * || || Surprise Stadium • Surprise, AZ || 2–7 || Egloff (1–0) || Sellers (0–1) || McBroom || 0–1 || |-bgcolor=bbffbb | Feb 18 || vs. * || || Surprise Stadium • Surprise, AZ || 8–7 || Larson (1–0) || Klassen (0–1) || Brown (1) || 1–1 || |-bgcolor=bbffbb | Feb 19 || vs. New Mexico* || || Surprise Stadium • Surprise, AZ || 14–6 || Hutcheson (1–0) || Russell (0–1) || None || 2–1 || |-bgcolor=bbffbb | Feb 20 || vs. * || || Surprise Stadium • Surprise, AZ || 11–08 || Lawson (1–0) || Bremner (0–1) || None || 3–1 || |-bgcolor=bbffbb | Feb 24 || vs. * || || Goss Stadium at Coleman Field • Corvallis, OR || 11–1 || Sellers (1–1) || McCallum (1–1) || None || 4–1 || |-bgcolor=bbffbb | Feb 25 || vs. Coppin State* || || Goss Stadium at Coleman Field • Corvallis, OR || 16–0 || Kmatz (1–0) || Herrand (1–1) || None || 5–1 || |-bgcolor=bbffbb | Feb 26 || vs. Coppin State* || || Goss Stadium at Coleman Field • Corvallis, OR || 19–5 || Lattery (1–0) || Hamberg (0–1) || None || 6–1 || |-