18th Missouri Infantry USA

18th Missouri Volunteer Infantry
Active	July 1861 - July 1865
Country	United States of America
Allegiance	Missouri
Branch	Union Army
Type	Infantry
Size	705 men (at outset of first campaigning)
Engagements	Siege of Island No. 10 Battle of Shiloh Siege of Corinth Second Battle of Corinth Battle of Resaca Atlanta Campaign March to the Sea Selkehatchie Bentonville Bennett's House
Commanders
Colonel of the Regiment	Madison Miller, Charles Sheldon

The 18th Missouri Infantry was a United States Army unit organized during the American Civil War.

Organized at Laclede, Missouri, July to November, 1861. Attached to:

Regiment lost during service 6 Officers and 75 Enlisted men killed and mortally wounded and 164 Enlisted men by disease. Total 245.