1977 NCAA Division I baseball tournament

The 1977 NCAA Division I baseball tournament was played at the end of the 1977 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-first year. Eight regional competitions were held to determine the participants in the final event. Seven regions held a four team, double-elimination tournament while one region included six teams, resulting in 34 teams participating in the tournament at the conclusion of their regular season, and in some cases, after a conference tournament. The thirty-first tournament's champion was Arizona State, coached by Jim Brock. The Most Outstanding Player was Bob Horner of Arizona State.

Regionals
The opening rounds of the tournament were played across eight regional sites across the country, seven consisting of four teams and one of six teams. The winners of each Regional advanced to the College World Series.

Bold indicates winner.

All-Tournament Team
The following players were members of the All-Tournament Team.

Notable players

 * Arizona State: Jamie Allen, Chris Bando, Hubie Brooks, Bob Horner, Dave Hudgens, Darrell Jackson, Chris Nyman, Bob Pate, Rick Peters, Patt Rooney, Thomas Hawk
 * Baylor: Andy Beene, Jaime Cocanower, Fritzie Connally, Steve Macko
 * Cal State Los Angeles: Darrell Brown, Alfredo Esparza
 * Clemson: Ron Musselman, Bill Schroeder, Brian Snyder
 * Minnesota: Brian Denman, Paul Molitor, Jerry Ujdur
 * South Carolina: Jim Lewis, Ed Lynch, Randy Martz, Mookie Wilson
 * Southern Illinois: Neil Fiala, Rickey Keeton, Bill Lyons, Dewey Robinson, George Vukovich
 * Temple: Pete Filson