| Mode: | baseball |
| Year: | 2013 |
| Team: | Oregon State Beavers |
| Conference: | Pac-12 Conference |
| Short Conf: | Pac-12 |
| Record: | 52–13 |
| Conf Record: | 24–6 |
| Head Coach: | Pat Casey |
| Hc Year: | 19th |
| Asst Coach1: | Marty Lees |
| Ac1 Year: | 12th |
| Asst Coach2: | Pat Bailey |
| Ac2 Year: | 6th |
| Pitch Coach: | Nate Yeskie |
| Pc Year: | 5th |
| Stadium: | Goss Stadium at Coleman Field |
| Champion: | Pac-12 champions Corvallis Regional champions Corvallis Super Regional champions |
| Tourney: | College World Series |
| Tourney Result: | 2–2 |
The 2013 Oregon State Beavers baseball team represents Oregon State University in the 2013 NCAA Division I baseball season. The Beavers play their home games at Goss Stadium at Coleman Field and are members of the Pac-12 Conference. The team is coached by Pat Casey in his 19th season at Oregon State. The Beavers won the Pac-12 conference with a 24–6 conference record, and made it to the semifinals of the College World Series in Omaha, Nebraska, officially finishing tied for 3rd in the tournament.
! style="" | Regular season (45–10)|- valign="top" |- bgcolor="#ddffdd"| 1 || Feb 15 || vs. || No. 10 || Palm Springs Stadium • Palm Springs, CA || W 5–2 || 1–0 || –|- bgcolor="#ddffdd"| 2 || Feb 16 || vs. || No. 10 || Palm Springs Stadium • Palm Springs, CA || W 9–2 || 2–0 || –|- bgcolor="#ddffdd"| 3 || Feb 17 || vs. || No. 10 || Palm Springs Stadium • Palm Springs, CA || W 14–3 (7) || 3–0 || –|- bgcolor="#ddffdd"| 4 || Feb 18 || vs. UC Riverside || No. 9 || Palm Springs Stadium • Palm Springs, CA || W 5–4 (11) || 4–0 || –|- bgcolor="#ddffdd"| 5 || Feb 21 || at No. 22 || No. 9 || Tony Gwynn Stadium • San Diego, CA || W 8–1 || 5–0 || –|- bgcolor="#ddffdd"| 6 || Feb 22 || at No. 22 San Diego State || No. 9 || Tony Gwynn Stadium • San Diego, CA || W 2–0 || 6–0 || –|- bgcolor="#ddffdd"| 7 || Feb 23 || at No. 22 San Diego State || No. 9 || Tony Gwynn Stadium • San Diego, CA || W 5–0 || 7–0 || –|- bgcolor="#ddffdd"| 8 || Feb 24 || at No. 22 San Diego State || No. 9 || Tony Gwynn Stadium • San Diego, CA || W 7–1 || 8–0 || –|-|- bgcolor="#ddffdd"| 9 || Mar 1 || || No. 5 || Goss Stadium • Corvallis, OR || W 2–1 (10) || 9–0 || –|- bgcolor="#ddffdd"| 10 || Mar 2 || Bryant || No. 5 || Goss Stadium • Corvallis, OR || W 7–2 || 10–0 || –|- bgcolor="#ddffdd"| 11 || Mar 2 || Bryant || No. 5 || Goss Stadium • Corvallis, OR || W 3–1 || 11–0 || –|- bgcolor="#ddffdd"| 12 || Mar 3 || Bryant || No. 5 || Goss Stadium • Corvallis, OR || W 14–0 || 12–0 || –|- bgcolor="#dddddd"| || Mar 5 || at || No. 3 || Joe Etzel Field • Portland, OR ||colspan=4|Postponed to April 17|- bgcolor="#ddffdd"| 13 || Mar 8 || || No. 3 || Goss Stadium • Corvallis, OR || W 16–4 || 13–0 || –|- bgcolor="#ddffdd"| 14 || Mar 9 || Texas State || No. 3 || Goss Stadium • Corvallis, OR || W 6–3 || 14–0 || –|- bgcolor="#ddffdd"| 15 || Mar 10 || Texas State || No. 3 || Goss Stadium • Corvallis, OR || W 6–4 || 15–0 || –|- bgcolor="#ffdddd"| 16 || Mar 12 || || No. 2 || Goss Stadium • Corvallis, OR || L 1–5 || 15–1 || –|- bgcolor="#ddffdd"| 17 || Mar 13 || San Francisco || No. 2 || Goss Stadium • Corvallis, OR || W 6–5 || 16–1 || –|- bgcolor="#ddffdd"| 18 || Mar 15 || at No. 24 Arizona || No. 2 || Hi Corbett Field • Tucson, AZ || W 6–2 || 17–1 || 1–0|- bgcolor="#ddffdd"| 19 || Mar 16 || at No. 24 Arizona || No. 2 || Hi Corbett Field • Tucson, AZ || W 4–3 || 18–1 || 2–0|- bgcolor="#ddffdd"| 20 || Mar 17 || at No. 24 Arizona || No. 2 || Hi Corbett Field • Tucson, AZ || W 8–4 || 19–1 || 3–0|- bgcolor="#ddffdd"| 21 || Mar 22 || No. 22 || No. 2 || Goss Stadium • Corvallis, OR || W 5–0 || 20–1 || 4–0|- bgcolor="#ffdddd"| 22 || Mar 23 || No. 22 Arizona State || No. 2 || Goss Stadium • Corvallis, OR || L 0–4 || 20–2 || 4–1|- bgcolor="#ddffdd"| 23 || Mar 24 || No. 22 Arizona State || No. 2 || Goss Stadium • Corvallis, OR || W 4–3 || 21–2 || 5–1|- bgcolor="#ffdddd"| 24 || Mar 28 || at || No. 2 || Fowler Park • San Diego, CA || L 4–7 || 21–3 || –|- bgcolor="#ddffdd"| 25 || Mar 29 || at San Diego || No. 2 || Fowler Park • San Diego, CA || W 14–5 || 22–3 || –|- bgcolor="#ffdddd"| 26 || Mar 30 || at San Diego || No. 2 || Fowler Park • San Diego, CA || L 3–13 || 22–4 || –|-|colspan=9||-|- bgcolor="#ddffdd"| 27 || Apr 2 || || No. 6 || Goss Stadium • Corvallis, OR || W 7–5 || 23–4 || –|- bgcolor="#ffdddd"| 28 || Apr 5 || at No. 13 UCLA || No. 6 || Jackie Robinson Stadium • Los Angeles, CA || L 2–3 || 23–5 || 5–2|- bgcolor="#ddffdd"| 29 || Apr 6 || at No. 13 UCLA || No. 6 || Jackie Robinson Stadium • Los Angeles, CA || W 5–0 || 24–5 || 6–2|- bgcolor="#ddffdd"| 30 || Apr 7 || at No. 13 UCLA || No. 6 || Jackie Robinson Stadium • Los Angeles, CA || W 5–2 || 25–5 || 7–2|- bgcolor="#ffdddd"| 31 || Apr 9 || No. 9 || No. 6 || Goss Stadium • Corvallis, OR || L 3–6 || 25–6 || –|- bgcolor="#ddffdd"| 32 || Apr 12 || || No. 6 || Goss Stadium • Corvallis, OR || W 1–0 || 26–6 || 8–2|- bgcolor="#ddffdd"| 33 || Apr 13 || Utah || No. 6 || Goss Stadium • Corvallis, OR || W 8–3 || 27–6 || 9–2|- bgcolor="#ddffdd"| 34 || Apr 14 || Utah || No. 6 || Goss Stadium • Corvallis, OR || W 4–1 || 28–6 || 10–2|- bgcolor="#ddffdd"| 35 || Apr 17 || at Portland || No. 5 || Joe Etzel Field • Portland, OR || W 5–1 || 29–6 || –|- bgcolor="#ffdddd"| 36 || Apr 20 || at || No. 5 || Husky Ballpark • Seattle, WA || L 1–5 || 29–7 || 10–3|- bgcolor="#ffdddd"| 37 || Apr 20 || at Washington || No. 5 || Husky Ballpark • Seattle, WA || L 3–10 || 29–8 || 10–4|- bgcolor="#ddffdd"| 38 || Apr 21 || at Washington || No. 5 || Husky Ballpark • Seattle, WA || W 8–0 || 30–8 || 11–4|- bgcolor="#ddffdd"| 39 || Apr 22 || at || No. 6 || Bannerwood Park • Bellevue, WA || W 4–3 (14) || 31–8 || –|- bgcolor="#ddffdd"| 40 || Apr 26 || || No. 6 || Goss Stadium • Corvallis, OR || W 10–4 || 32–8 || 12–4|- bgcolor="#ddffdd"| 41 || Apr 27 || Southern California || No. 6 || Goss Stadium • Corvallis, OR || W 3–0 || 33–8 || 13–4|- bgcolor="#ddffdd"| 42 || Apr 28 || Southern California || No. 6 || Goss Stadium • Corvallis, OR || W 6–1 || 34–8 || 14–4|-|- bgcolor="#ddffdd"| 43 || May 3 || || No. 5 || Goss Stadium • Corvallis, OR || W 6–1 || 35–8 || 15–4|- bgcolor="#ddffdd"| 44 || May 4 || California || No. 5 || Goss Stadium • Corvallis, OR || W 5–0 || 36–8 || 16–4|- bgcolor="#ddffdd"| 45 || May 5 || California || No. 5 || Goss Stadium • Corvallis, OR || W 6–4 || 37–8 || 17–4|- bgcolor="#ddffdd"| 46 || May 8 || vs. || No. 5 || Volcanoes Stadium • Keizer, OR || W 4–3 || 38–8 || –|- bgcolor="#ddffdd"| 47 || May 10 || at No. 19 || No. 5 || Klein Field at Sunken Diamond • Stanford, CA || W 7–3 || 39–8 || 18–4|- bgcolor="#ddffdd"| 48 || May 11 || at No. 19 Stanford || No. 5 || Klein Field at Sunken Diamond • Stanford, CA || W 10–4 || 40–8 || 19–4|- bgcolor="#ddffdd"| 49 || May 12 || at No. 19 Stanford || No. 5 || Klein Field at Sunken Diamond • Stanford, CA || W 5–4 || 41–8 || 20–4|- bgcolor="#ffdddd"| 50 || May 17 || at No. 6 || No. 4 || PK Park • Eugene, OR || L 0–3 || 41–9 || 20–5|- bgcolor="#ddffdd"| 51 || May 18 || at No. 6 Oregon || No. 4 || PK Park • Eugene, OR || W 9–0 || 42–9 || 21–5|- bgcolor="#ddffdd"| 52 || May 19 || at No. 6 Oregon || No. 4 || PK Park • Eugene, OR || W 12–2 || 43–9 || 22–5|- bgcolor="#dddddd"| || May 21 || No. 7 Oregon || No. 4 || Goss Stadium • Corvallis, OR ||colspan=4|Cancelled|- bgcolor="#ffdddd"| 53 || May 24 || || No. 4 || Goss Stadium • Corvallis, OR || L 9–10 (11) || 43–10 || 22–6|- bgcolor="#ddffdd"| 54 || May 25 || Washington State || No. 4 || Goss Stadium • Corvallis, OR || W 4–0 || 44–10 || 23–6|- bgcolor="#ddffdd"| 55 || May 26 || Washington State || No. 4 || Goss Stadium • Corvallis, OR || W 7–6 || 45–10 || 24–6|-|-|-! style="" | Postseason (7–3)|- valign="top"|- bgcolor="#ddffdd"| 56 || May 31 || (4) || (1) No. 5 || Goss Stadium • Corvallis, OR || W 5–4 || 46–10 || 1–0|- bgcolor="#ddffdd"| 57 || June 1 || (3) || (1) No. 5 || Goss Stadium • Corvallis, OR || W 3–2 || 47–10 || 2–0|- bgcolor="#ddffdd"| 58 || June 2 || (2) || (1) No. 5 || Goss Stadium • Corvallis, OR || W 6–1 || 48–10 || 3–0|-|- bgcolor="#ffdddd"| 59 || June 8 || No. 15 || (3) No. 5 || Goss Stadium • Corvallis, OR || L 2–6 (10) || 48–11 || 3–1|- bgcolor="#ddffdd"| 60 || June 9 || No. 15 Kansas State || (3) No. 5 || Goss Stadium • Corvallis, OR || W 12–4 || 49–11 || 4–1|- bgcolor="#ddffdd"| 61 || June 10 || No. 15 Kansas State || (3) No. 5 || Goss Stadium • Corvallis, OR || W 4–3 || 50–11 || 5–1|-|- bgcolor="#ffdddd"| 62 || June 15 || vs. No. 7 Mississippi State || (3) No. 3 || TD Ameritrade Park • Omaha, NE || L 4–5 || 50–12 || 0–1|- bgcolor="#ddffdd"| 63 || June 17 || vs. No. 4 || (3) No. 3 || TD Ameritrade Park • Omaha, NE || W 11–4 || 51–12 || 1–1|- bgcolor="#ddffdd"| 64 || June 19 || vs. No. 8 || (3) No. 3 || TD Ameritrade Park • Omaha, NE || W 1–0 || 52–12 || 2–1|- bgcolor="#ffdddd"| 65 || June 21 || vs. No. 7 Mississippi State || (3) No. 3 || TD Ameritrade Park • Omaha, NE || L 1–4 || 52–13 || 2–2
See main article: 2013 NCAA Division I baseball rankings.