Army of the Ohio

Army of the Ohio
Active	1861–62 1863–65
Country	United States of America
Branch	United States Army
Type	Field army
Engagements	American Civil War Battle of Mill Springs Battle of Shiloh Battle of Perryville
Commanders
Notable commanders	Don Carlos Buell William S. Rosecrans Ambrose Burnside John M. Schofield

The Army of the Ohio was the name of two Union armies in the American Civil War. The first army became the Army of the Cumberland and the second army was created in 1863.