- Source: 2018 NCAA Division III baseball tournament
- Steven Universe
- 2018 NCAA Division III baseball tournament
- NCAA Division III baseball tournament
- 2024 NCAA Division III baseball tournament
- 2024 NCAA Division I baseball tournament
- 2023 NCAA Division I baseball tournament
- 2022 NCAA Division I baseball tournament
- 1985 NCAA Division III baseball tournament
- 1987 NCAA Division III baseball tournament
- 1986 NCAA Division III baseball tournament
- 1992 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 Texas-Tyler, who defeated Texas Lutheran in the championship series in two games.
This was the final DIII World Series contested with the current regional format and World Series location.
Bids
= Automatic bids
=Source: NCAA
= At-large bids
== Pool B
== Pool C
=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)