|Champions||Augustana (SD) (1st title)|
|Runner-up||Columbus State (8th CWS Appearance)|
|Winning coach||Tim Huber (1st title)|
The 2018 NCAA Division II baseball tournament decided the champion of baseball in NCAA Division II for the 2018 season. The Augustana Vikings of South Dakota claimed their first national title. In the final, Augustana defeated the Columbus State Cougars. The Cougars made their eighth appearance in the College World Series, having won the event in 2002 and two other times finished as runner up.
Atlantic Regional–Millersville, Pennsylvania
Central Regional–Magnolia, Arkansas
East Regional–New Haven, Connecticut
Midwest Regional–Springfield, Illinois
South Regional–Lakeland, Florida
Southeast Regional–Tigerville, South Carolina
South Central Regional–Canyon, Texas
West Region–Azusa, California
College World Series
|First Round||Second Round||Semifinals||Final|
|4||Southern New Hampshire||2|
|4||Southern New Hampshire||2||—|
|4||Southern New Hampshire||3|
|3||UC San Diego||4|
|4||Southern New Hampshire||7|
|3||UC San Diego||3|
|3||UC San Diego||0|
- "2018 NCAA Division II Baseball Championship Regionals" (PDF). NCAA. Retrieved June 2, 2018.
- "2018 DII Men's Baseball Championship Interactive Bracket". NCAA.com. Retrieved June 2, 2018.