1984 NCAA Division I baseball tournament

Eight regional competitions were held to determine the participants in the final event.

[1] The thirty-eighth tournament's champion was Cal State Fullerton, coached by Augie Garrido.

The Most Outstanding Player was John Fishel of Cal State Fullerton.

Gary Green and Bill Swift appear in their fourth College World Series.

Michigan's appearance was the last for the Big Ten until 2013 when Indiana made the College World Series.