The Missouri Valley League was an American minor league baseball league which operated from 1902 through 1904.
New teams in Nevada, Missouri, Springfield, Missouri, Fort Scott, Kansas, Sedalia, Missouri, Joplin, Missouri, Coffeyville, Kansas, Jefferson City, Missouri, and Iola, Kansas formed and created the new league.
The Coffeyville team, with a 9-30 record, relocated to Chanute, Kansas, where they had a 32-51 record, on June 23.
The teams in Chanute and Jefferson City folded. New teams in Leavenworth, Kansas and Pittsburg, Kansas formed and joined the league. The Nevada team, with a record of 21-39, relocated to Webb City, Missouri on July 13, where their record was 0-4. The teams from Leavenworth and Webb City folded mid-season on July 16.
New teams in Leavenworth, Kansas and Topeka, Kansas, formed and joined the league.
The teams from Fort Scott and Pittsburg moved to the Missouri Valley League. The teams from Joplin, Leavenworth, Sedalia, Springfield, and Topeka all joined the Western Association. The team from Iola, and the league itself, folded.