2018 NCAA Division III baseball tournament

The 2018 NCAA Division III baseball tournament was played at the end of the 2018 NCAA Division III baseball season to determine the 43rd national champion of college baseball at the NCAA Division III level. The tournament concluded with eight teams competing at Neuroscience Group Field at Fox Cities Stadium in Grand Chute, Wisconsin for the championship. Eight regional tournaments were held to determine the participants in the World Series. Regional tournaments were contested in double-elimination format, with three regions consisting of six teams, and five consisting of eight, for a total of 58 teams participating in the tournament, up from 56 in 2017. The tournament champion was, who defeated in the championship series in two games.

This was the final DIII World Series contested with the current regional format and World Series location.

Automatic bids
Source: NCAA

Regionals
Bold indicates winner.

New England Regional
Whitehouse Field-Harwich, MA (Host: Massachusetts Maritime Academy)

Central Regional
GCS Ballpark-Sauget, IL (Host: St. Louis Intercollegiate Athletic Conference)

South Regional
Ting Park-Holly Springs, NC (Host: William Peace University)

Mid-Atlantic Regional
WellSpan Park – York, PA (Host: Middle Atlantic Conferences)

Midwest Regional
Frank Wade Municipal Stadium-Duluth, MN (Host: The College of Saint Scholastica)

New York Regional
Leo Pinckney Field at Falcon Park-Auburn, NY (Host: State University of New York College at Cortland)

Mideast Regional
Nicolay Field-Adrian, MI (Host: Adrian College)

West Regional
Avista Stadium-Spokane, WA (Host: Whitworth College/Spokane Sports Commission)

World Series
Neuroscience Group Field at Fox Cities Stadium-Grand Chute, WI (Host: University of Wisconsin-Oshkosh/Lawrence University/Fox Cities Convention and Visitors Bureau)