The 1997 NCAA Division I baseball tournament was played at the end of the 1997 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 fifty first year. Eight regional competitions were held to determine the participants in the final event. Each region was composed of six teams, resulting in 48 teams participating in the tournament at the conclusion of their regular season, and in some cases, after a conference tournament; Ivy League champion Harvard played Patriot League champion Army in a play-in series that went the full three games to determine who would play in the NCAA tournament. The fifty-first tournament's champion was LSU, coached by Skip Bertman. The Most Outstanding Player was Brandon Larson of LSU.

The opening rounds of the tournament were played across eight regional sites across the country, each consisting of a six-team field. Each regional tournament is double-elimination, however region brackets are variable depending on the number of teams remaining after each round. The winners of each regional advanced to the College World Series.

Bold indicates winner.

Hosted by Miami (FL) at Mark Light Field in Coral Gables, Florida.

Hosted by Texas Tech at Dan Law Field in Lubbock, Texas.

Hosted by Florida State at Dick Howser Stadium in Tallahassee, Florida.

Hosted by Mississippi State at Dudy Noble Field in Starkville, Mississippi.

Hosted by Oklahoma State at Allie P. Reynolds Stadium in Stillwater, Oklahoma.