Army of the Ohio

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.

Commanders

• Major General Don Carlos Buell (November 15, 1861 – October 24, 1862) also department commander until March 11
• Major General William S. Rosecrans (October 24 – October 30, 1862) became the Army of the Cumberland
• Major General Ambrose Burnside (March 25 – December 9, 1863) also department commander
• Major General John G. Foster (December 9, 1863 – February 9, 1864) also department commander
• Major General John M. Schofield (February 9 – September 14, 1864) also department commander
• Major General Jacob D. Cox (September 14 – October 22, 1864)
• Major General John M. Schofield (October 22, 1864 – February 2, 1865)
• Major General Jacob D. Cox (February 2–9, 1865)
• Major General John M. Schofield (February 9 – March 31, 1865) also commander of the Department of North Carolina