1983 NCAA Division I baseball tournament
The 1983 NCAA Division I baseball tournament was played at the end of the 1983 NCAA Division I baseball season to determine the national champion of college baseball. The tournament concluded with eight teams competing in the College World Series, a double-elimination tournament in its thirty seventh year. Eight regional competitions were held to determine the participants in the final event. Six regions held a four team, double-elimination tournament while two regions included six teams, resulting in 36 teams participating in the tournament at the conclusion of their regular season, and in some cases, after a conference tournament. The thirty-seventh tournament's champion was [1983 1983 Texas Longhorns baseball team|Texas Longhorns baseball team|Texas], coached by Cliff Gustafson. The Most Outstanding Player was Calvin Schiraldi of Texas.
National seeds
Bold indicates CWS participant.Regionals
The opening rounds of the tournament were played at eight regional sites across the country, six consisting of four teams and two of six teams. The winners of each Regional advanced to the College World Series.Bold indicates winner.
College World Series
Results
Bracket
Game results
| Date | Game | Winner | Score | Loser | Notes |
| June 3 | Game 1 | Texas | 12–0 | ||
| June 3 | Game 2 | [1983 Oklahoma State Cowboys baseball|Oklahoma State Cowboys baseball team|Oklahoma State] | 3–1 | Stanford | |
| June 4 | Game 3 | Michigan | 6–5 | ||
| June 4 | Game 4 | Alabama | 6–5 | [1983 1983 Arizona State Sun Devils baseball team|Arizona State Sun Devils baseball team|Arizona State] | |
| June 5 | Game 5 | Stanford | 3–1 | James Madison eliminated | |
| June 5 | Game 6 | Arizona State | 7–0 | Maine eliminated | |
| June 6 | Game 7 | Texas | 6–5 | Oklahoma State | |
| June 7 | Game 8 | Alabama | 6–5 | Michigan | |
| June 8 | Game 9 | Arizona State | 6–5 | Oklahoma State | Oklahoma State eliminated |
| June 8 | Game 10 | Michigan | 11–4 | Stanford | Stanford eliminated |
| June 9 | Game 11 | Texas | 6–4 | Alabama | |
| June 10 | Game 12 | Alabama | 6–0 | Arizona State | Arizona State eliminated |
| June 10 | Game 13 | Texas | 4–2 | Michigan | Michigan eliminated |
| June 11 | Final | Texas | 4–3 | Alabama | Texas wins CWS |
- Texas was the last school to go undefeated in the CWS under the true double-elimination format, which was used from 1950 through 1987. No CWS team would go undefeated again until LSU in 1991.
All-Tournament Team
The following players were members of the All-Tournament Team.| Position | Player | School |
| P | Tim Meacham | Alabama |
| P | Calvin Schiraldi | Texas |
| C | Jeff Hearron | Texas |
| 1B | Dave Magadan | Alabama |
| 2B | Billy Bates | Texas |
| 3B | Chris Sabo | Michigan |
| SS | Mike Brumley | Texas |
| OF | Barry Bonds | Arizona State |
| OF | Tim Knapp | Oklahoma State |
| OF | Dale Sklar | Michigan |
| DH | Pete Incaviglia | Oklahoma State |