List of Missouri state high school baseball champions

Below is a list of Missouri state high school baseball championships  sanctioned by the Missouri State High School Activities Association since the organization began holding the tournaments in 1950. More recently, championships have been held at Meador Park in Springfield to 2012, and CarShield Field (formerly T.R. Hughes Ballpark) in O'Fallon from 2013. Since 2021, they are played at U.S. Baseball Park in Ozark, Missouri, renamed as the Ozark Mountain Sports Complex in 2024.