1975 NCAA Division I baseball tournament
The 1975 NCAA Division I baseball tournament was played at the end of the 1975 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 twenty-ninth year. Eight regional competitions were held to determine the participants in the final event. Each region held a four team, double-elimination tournament, resulting in 32 teams participating in the tournament at the conclusion of their regular season, and in some cases, after a conference tournament. The twenty-ninth tournament's champion was [1975 1975 Texas Longhorns baseball team|Texas Longhorns baseball team|Texas], coached by Cliff Gustafson, their first in a quarter-century. The Most Outstanding Player was Mickey Reichenbach of Texas. This was the first year the tournament used the regionals.
The 1975 tournament marked the first appearance for LSU, which would become a college baseball superpower in the succeeding decades, claiming seven national championships between 1991 and 2023. LSU had earlier won the 1961 Southeastern Conference championship to earn an automatic bid to the NCAA tournament, but declined the bid to avoid playing integrated teams.
This season also marked the first appearance for Cal State Fullerton, which would claim four national championships from 1979 through 2004. Head coach Augie Garrido guided the Titans to three titles before moving to Texas, where he claimed three more titles from 2002 through 2009.
Regionals
1975 was the first year the NCAA featured the Regional format for the tournament, which is still in use today, although it has been modified.Northeast Regional
Games played in Stamford, CT.Atlantic Regional
Games played in Columbia, SC.Mideast Regional
Games played in Ypsilanti, MI.South Regional
Games played in Starkville, MS.Midwest Regional
Games played in Norman, OK.South Central Regional
Games played in Arlington, TX.Rocky Mountain Regional
Games played in Tempe, AZ.West Regional
Games played in Los Angeles.College World Series
Seton Hall, South Carolina, Eastern Michigan, Florida St., Oklahoma, Texas, Arizona St. and Cal St. Fullerton won their regionals and moved on to the 1975 College World Series.Results
Bracket
Game results
| Date | Game | Winner | Score | Loser | Notes |
| June 6 | Game 1 | [1975 Arizona State Sun Devils baseball|Arizona State Sun Devils baseball team|Arizona State] | 5–3 | [1975 Cal State Fullerton Titans baseball|Cal State Fullerton Titans baseball team|Cal State Fullerton] | |
| June 6 | Game 2 | Texas | 4–2 | Oklahoma | |
| June 7 | Game 3 | South Carolina | 3–1 | Seton Hall | |
| June 7 | Game 4 | 2–1 | [1975 Florida State Seminoles baseball|Florida State Seminoles baseball team|Florida State] | ||
| June 7 | Game 5 | Oklahoma | 11–4 | Cal State Fullerton | Cal State Fullerton eliminated |
| June 8 | Game 6 | Seton Hall | 11–0 | Florida State | Florida State eliminated |
| June 8 | Game 7 | Arizona State | 5–2 | Texas | |
| June 8 | Game 8 | South Carolina | 5–1 | ||
| June 9 | Game 9 | Texas | 12–10 | Seton Hall | Seton Hall eliminated |
| June 9 | Game 10 | Oklahoma | 7–0 | Eastern Michigan eliminated | |
| June 11 | Game 11 | South Carolina | 6–3 | Arizona State | |
| June 12 | Game 12 | Arizona State | 1–0 | Oklahoma | Oklahoma eliminated |
| June 12 | Game 13 | Texas | 17–6 | South Carolina | |
| June 13 | Game 14 | South Carolina | 4–1 | Arizona State | Arizona State eliminated |
| June 14 | Final | Texas | 5–1 | South Carolina | Texas wins CWS |
All-Tournament Team
The following players were members of the All-Tournament Team.| Position | Player | School |
| P | Earl Bass | |
| P | Richard Wortham | Texas |
| C | Rick Cerone | |
| 1B | Mickey Reichenbach | Texas |
| 2B | Mark Van Bever | |
| 3B | Gary Allenson | Arizona State |
| SS | Blair Stouffer | Texas |
| OF | Rick Bradley | Texas |
| OF | Steve Cook | |
| OF | Bob Pate | Arizona State |