1975 NAIA World Series

The 1975 NAIA World Series was the 19th annual tournament hosted by the National Association of Intercollegiate Athletics to determine the national champion of baseball among its member colleges and universities in the United States and Canada.

The tournament was again played at Phil Welch Stadium in St. Joseph, Missouri.

In a rematch of the previous year's final, defending champions Lewis (IL) (52-16) defeated Sam Houston State (43-14) in a single-game championship series, 2–1, to win the Flyers' second NAIA World Series and becoming the first team to repeat as NAIA baseball champions.

Lewis pitcher Don Markelz was named tournament MVP.