1st Mississippi Infantry Regiment

1st Mississippi Infantry Regiment
Active	1861–1865
Country	Confederate States
Allegiance	Mississippi
Branch	Army
Role	Infantry
Size	Regiment
Facings	Light blue
Engagements	American Civil War Battle of Fort Donelson Siege of Port Hudson Battle of Tupelo Battle of Franklin Battle of Nashville
Commanders
Notable commanders	Col. Thomas H. Johnston Col. John M. Simonton Capt. Owen D. Hughes

The 1st Mississippi Infantry Regiment (Simonton's/Johnston's) was a line infantry regiment of the Confederate States Army formed from companies in north Mississippi. The regiment was first organized in the summer and late fall of 1861. The unit fought primarily in the western theater of the war. Many men from the regiment were recruited from Itawamba County in Mississippi.