1st Missouri Infantry may refer to:
- 1st Missouri Infantry Regiment (Union), a Union regiment during the American Civil War
- 1st Missouri Infantry (Confederate), a Confederate regiment during the American Civil War
- 1st Missouri Regiment of Colored Infantry, a Union African-American regiment during the American Civil War
See also
- 1st and 4th Missouri Infantry (Consolidated)
- 1st Missouri Light Artillery Regiment, a Union regiment created by converting the 1st Missouri Infantry Regiment (Union) to artillery
If an internal link referred you to this page, you may wish to change the link to point directly to the intended article. Category: