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 Texas, coached by Cliff Gustafson. The Most Outstanding Player was Calvin Schiraldi of Texas.