2019 NCAA Division III baseball tournament

The 2019 NCAA Division III baseball tournament was the 44th edition of the NCAA Division III Baseball Championship. This was a 58-team tournament of college baseball at the NCAA Division III (D-III) level. The tournament concluded with eight teams competing at Perfect Game Field at Veterans Memorial Stadium in Cedar Rapids, Iowa for the championship. Eight regional tournaments were held to determine the participants in the World Series.

This was the first year in which the regional tournaments were contested in a "Super Regional" format, mirroring the Division I and II tournaments. Each "Super Regional" were split into two regionals, thirteen consisting of four teams to be contested in double-elimination format, with the other three consisting of two teams to be contested in a best-of-five format, for a total of 58 teams in the tournament. The regionals were followed by the "Super Regional" round, which were contested as a best-of-three series between the two regional winners for the spot in the D-III World Series.

This was the first D-III World Series contested at Veterans Memorial Stadium in Cedar Rapids, Iowa, which won the hosting rights for the D-III World Series from 2019 to 2022. The event was hosted by the American Rivers Conference, which was known as the Iowa Intercollegiate Athletic Conference when hosting rights were awarded in 2017.