| Year: | 1990 |
| Team: | Stanford Cardinal |
| Sport: | baseball |
| Conference: | Pacific 10 Conference |
| Conference Link: | Pac-12 Conference |
| Short Conf: | Pac-10 |
| Coachrank: | 3 |
| Cbrank: | 3 |
| Record: | 59–12 |
| Conf Record: | 24–6 |
| Head Coach: | Mark Marquess |
| Hc Year: | 14th |
| Stadium: | Sunken Diamond |
| Champion: | Pacific-10 Conference South Division champions West I Regional champions |
| Tourney: | College World Series |
| Tourney Result: | 3rd |
The 1990 Stanford Cardinal baseball team represented Stanford University in the 1990 NCAA Division I baseball season. The Cardinal played their home games at Sunken Diamond. The team was coached by Mark Marquess in his 14th year at Stanford.
The Cardinal won the Pacific-10 Conference South Division and the West I Regional to advanced to the College World Series, where they were defeated by the Georgia Bulldogs.
! style="" | Regular season|- valign="top" |- align="center" bgcolor="#ccffcc"| 1 || January 26 || at || Stephen Schott Stadium • Santa Clara, California || 6–0 || 1–0 || –|- align="center" bgcolor="#ccffcc"| 2 || January 28 || Santa Clara || Sunken Diamond • Stanford, California || 6–4 || 2–0 || –|- align="center" bgcolor="#ccffcc"| 3 || January 31 || || Sunken Diamond • Stanford, California || 15–5 || 3–0 || –|-|- align="center" bgcolor="#ccffcc"| 4 || February 2 || Cal State Fullerton || Sunken Diamond • Stanford, California || 8–1 || 4–0 || –|- align="center" bgcolor="#ccffcc"| 5 || February 3 || Cal State Fullerton || Sunken Diamond • Stanford, California || 1–0 || 5–0 || –|- align="center" bgcolor="#ccffcc"| 6 || February 4 || Cal State Fullerton || Sunken Diamond • Stanford, California || 8–7 || 6–0 || –|- align="center" bgcolor="#ffcccc"| 7 || February 5 || || Sunken Diamond • Stanford, California || 1–9 || 6–1 || –|- align="center" bgcolor="#ffcccc"| 8 || February 9 || at || Rainbow Stadium • Honolulu, Hawaii || 12–6 || 7–1 || –|- align="center" bgcolor="#ccffcc"| 9 || February 10 || at Hawaii || Rainbow Stadium • Honolulu, Hawaii || 11–2 || 8–1 || –|- align="center" bgcolor="#ccffcc"| 10 || February 11 || at Hawaii || Rainbow Stadium • Honolulu, Hawaii || 8–2 || 9–1 || –|- align="center" bgcolor="#ccffcc"| 11 || February 13 || || Sunken Diamond • Stanford, California || 4–3 || 10–1 || –|- align="center" bgcolor="#ccffcc"| 12 || February 18 || at || Jackie Robinson Stadium • Los Angeles, California || 16–5 || 11–1 || 1–0|- align="center" bgcolor="#ffcccc"| 13 || February 19 || at UCLA || Jackie Robinson Stadium • Los Angeles, California || 3–5 || 11–2 || 1–1|- align="center" bgcolor="#ccffcc"| 14 || February 19 || at UCLA || Jackie Robinson Stadium • Los Angeles, California || 6–5 || 12–2 || 2–1|- align="center" bgcolor="#ffcccc"| 15 || February 20 || || Sunken Diamond • Stanford, California || 5–6 || 12–3 || 2–1|- align="center" bgcolor="#ffcccc"| 16 || February 23 || at || Dedeaux Field • Los Angeles, California || 3–5 || 12–4 || 2–2|- align="center" bgcolor="#ccffcc"| 17 || February 24 || at Southern California || Dedeaux Field • Los Angeles, California || 5–2 || 13–4 || 3–2|- align="center" bgcolor="#ffcccc"| 18 || February 25 || at Southern California || Dedeaux Field • Los Angeles, California || 14–5 || 13–5 || 3–3|- align="center" bgcolor="#ccffcc"| 19 || February 26 || || Sunken Diamond • Stanford, California || 19–3 || 14–5 || 3–3|- align="center" bgcolor="#ccffcc"| 20 || February 27 || || Sunken Diamond • Stanford, California || 6–5 || 15–5 || 3–3|-|- align="center" bgcolor="#ccffcc"| 21 || March 3 || || Sunken Diamond • Stanford, California || 3–2 || 16–5 || 4–3|- align="center" bgcolor="#ccffcc"| 22 || March 5 || Arizona State || Sunken Diamond • Stanford, California || 14–8 || 17–5 || 5–3|- align="center" bgcolor="#ccffcc"| 23 || March 6 || Santa Clara || Sunken Diamond • Stanford, California || 9–5 || 18–5 || 5–3|- align="center" bgcolor="#ccffcc"| 24 || March 9 || Arizona || Sunken Diamond • Stanford, California || 8–2 || 19–5 || 6–3|- align="center" bgcolor="#ccffcc"| 25 || March 10 || Arizona || Sunken Diamond • Stanford, California || 7–4 || 20–5 || 7–3|- align="center" bgcolor="#ccffcc"| 26 || March 11 || Arizona || Sunken Diamond • Stanford, California || 8–2 || 21–5 || 8–3|- align="center" bgcolor="#ccffcc"| 27 || March 24 || at || Pete Beiden Field at Bob Bennett Stadium • Fresno, California || 9–2 || 22–5 || 8–3|- align="center" bgcolor="#ffcccc"| 28 || March 25 || at Fresno State || Pete Beiden Field at Bob Bennett Stadium • Fresno, California || 3–4 || 22–6 || 8–3|- align="center" bgcolor="#ccffcc"| 29 || March 26 || at Fresno State || Pete Beiden Field at Bob Bennett Stadium • Fresno, California || 5–3 || 23–6 || 8–3|- align="center" bgcolor="#ccffcc"| 30 || March 29 || at || Blair Field • Long Beach, California || 12–8 || 24–6 || 8–3|- align="center" bgcolor="#ccffcc"| 31 || March 30 || at || Hubert H. Humphrey Metrodome • Minneapolis, Minnesota || 10–4 || 25–6 || 8–3|- align="center" bgcolor="#ccffcc"| 32 || March 31 || vs || Hubert H. Humphrey Metrodome • Minneapolis, Minnesota || 10–1 || 26–6 || 8–3|-|- align="center" bgcolor="#ffcccc"| 33 || April 1 || vs || Hubert H. Humphrey Metrodome • Minneapolis, Minnesota || 3–4 || 26–7 || 8–3|- align="center" bgcolor="#ccffcc"| 34 || April 3 || || Sunken Diamond • Stanford, California || 16–2 || 27–7 || 8–3|- align="center" bgcolor="#ccffcc"| 35 || April 6 || UCLA || Sunken Diamond • Stanford, California || 6–1 || 28–7 || 9–3|- align="center" bgcolor="#ccffcc"| 36 || April 7 || UCLA || Sunken Diamond • Stanford, California || 9–7 || 29–7 || 10–3|- align="center" bgcolor="#ccffcc"| 37 || April 8 || UCLA || Sunken Diamond • Stanford, California || 11–8 || 30–7 || 11–3|- align="center" bgcolor="#ccffcc"| 38 || April 9 || at San Jose State || San Jose Municipal Stadium • San Jose, California || 6–5 || 31–7 || 11–3|- align="center" bgcolor="#ccffcc"| 39 || April 12 || || Sunken Diamond • Stanford, California || 11–1 || 32–7 || 12–3|- align="center" bgcolor="#ccffcc"| 40 || April 13 || at California || Evans Diamond • Berkeley, California || 14–9 || 33–7 || 13–3|- align="center" bgcolor="#ccffcc"| 41 || April 14 || California || Sunken Diamond • Stanford, California || 11–9 || 34–7 || 14–3|- align="center" bgcolor="#ccffcc"| 42 || April 17 || at Santa Clara || Buck Shaw Stadium • Santa Clara, California || 10–3 || 35–7 || 14–3|- align="center" bgcolor="#ccffcc"| 43 || April 20 || at Arizona || Jerry Kindall Field at Frank Sancet Stadium • Tucson, Arizona || 5–3 || 36–7 || 15–3|- align="center" bgcolor="#ccffcc"| 44 || April 21 || at Arizona || Jerry Kindall Field at Frank Sancet Stadium • Tucson, Arizona || 9–3 || 37–7 || 16–3|- align="center" bgcolor="#ccffcc"| 45 || April 22 || at Arizona || Jerry Kindall Field at Frank Sancet Stadium • Tucson, Arizona || 13–5 || 38–7 || 17–3|- align="center" bgcolor="#ccffcc"| 46 || April 23 || || Sunken Diamond • Stanford, California || 14–8 || 39–7 || 17–3|- align="center" bgcolor="#ccffcc"| 47 || April 24 || at San Francisco || Dante Benedetti Diamond at Max Ulrich Field • San Francisco, California || 13–0 || 40–7 || 17–3|- align="center" bgcolor="#ccffcc"| 48 || April 27 || at Arizona State || Packard Stadium • Tempe, Arizona || 10–9 || 41–7 || 18–3|- align="center" bgcolor="#ffcccc"| 49 || April 27 || at Arizona State || Packard Stadium • Tempe, Arizona || 1–16 || 41–8 || 18–4|- align="center" bgcolor="#ccffcc"| 50 || April 28 || at Arizona State || Packard Stadium • Tempe, Arizona || 10–7 || 42–8 || 19–4|- align="center" bgcolor="#ffcccc"| 51 || April 29 || at Arizona State || Packard Stadium • Tempe, Arizona || 6–13 || 42–9 || 19–5|-|- align="center" bgcolor="#ccffcc"| 52 || May 1 || at Saint Mary's || Louis Guisto Field • Moraga, California || 10–3 || 43–9 || 19–5|- align="center" bgcolor="#ccffcc"| 53 || May 4 || at California || Evans Diamond • Berkeley, California || 15–9 || 44–9 || 20–5|- align="center" bgcolor="#ccffcc"| 54 || May 5 || California || Sunken Diamond • Stanford, California || 15–1 || 45–9 || 21–5|- align="center" bgcolor="#ccffcc"| 55 || May 6 || at California || Evans Diamond • Berkeley, California || 3–2 || 46–9 || 22–5|- align="center" bgcolor="#ccffcc"| 56 || May 8 || at || Maloney Field • San Francisco, California || 10–6 || 47–9 || 22–5|- align="center" bgcolor="#ccffcc"| 57 || May 11 || Southern California || Sunken Diamond • Stanford, California || 2–1 || 48–9 || 23–5|- align="center" bgcolor="#ffcccc"| 58 || May 12 || Southern California || Sunken Diamond • Stanford, California || 2–3 || 48–10 || 23–6|- align="center" bgcolor="#ccffcc"| 59 || May 13 || Southern California || Sunken Diamond • Stanford, California || 6–1 || 49–10 || 24–6|- align="center" bgcolor="#ccffcc"| 60 || May 18 || || Sunken Diamond • Stanford, California || 6–2 || 50–10 || 24–6|- align="center" bgcolor="#ccffcc"| 61 || May 19 || UC Santa Barbara || Sunken Diamond • Stanford, California || 6–4 || 51–10 || 24–6|- align="center" bgcolor="#ccffcc"| 62 || May 20 || UC Santa Barbara || Sunken Diamond • Stanford, California || 13–11 || 52–10 || 24–6|-|-|-! style="" | Postseason|- valign="top"|- align="center" bgcolor="#ccffcc"| 63 || May 24 || || Sunken Diamond • Stanford, California || 7–0 || 53–10 || 24–6|- align="center" bgcolor="#ccffcc"| 64 || May 25 || || Sunken Diamond • Stanford, California || 6–1 || 54–10 || 24–6|- align="center" bgcolor="#ccffcc"| 65 || May 26 || || Sunken Diamond • Stanford, California || 6–2 || 55–10 || 24–6|- align="center" bgcolor="#ccffcc"| 66 || May 28 || San Diego State || Sunken Diamond • Stanford, California || 6–2 || 56–10 || 24–6|-|- align="center" bgcolor="#ccffcc"| 67 || June 1 || vs || Johnny Rosenblatt Stadium • Omaha, Nebraska || 5–4 || 57–10 || 24–6|- align="center" bgcolor="#ffcccc"| 68 || June 3 || vs Georgia || Johnny Rosenblatt Stadium • Omaha, Nebraska || 2–16 || 57–11 || 24–6|- align="center" bgcolor="#ccffcc"| 69 || June 5 || vs || Johnny Rosenblatt Stadium • Omaha, Nebraska || 6–1 || 58–11 || 24–6|- align="center" bgcolor="#ccffcc"| 70 || June 6 || vs Georgia || Johnny Rosenblatt Stadium • Omaha, Nebraska || 4–2 || 59–11 || 24–6|- align="center" bgcolor="#ffcccc"| 71 || June 8 || vs Georgia || Johnny Rosenblatt Stadium • Omaha, Nebraska || 1–5 || 59–12 || 24–6|-[1]