The 37th Ohio Infantry Regiment was a Union Army regiment, composed of German-Americans, in the American Civil War. It was organized in the fall of 1861, under Colonel Edward Siber, and served in the Kanawha Valley until December 1862. It joined the Union army operating against Vicksburg, Mississippi, in January 1863, and participated in the various engagements of the siege. After the fall of that stronghold it was moved across Tennessee from Memphis to Chattanooga, and took part in operations of the 15th Corps, subsequent to, and at the taking of Atlanta, Georgia. It then followed the fortunes of that well-known corps until the reaching of Washington, D.C. From Louisville, Kentucky, it went with the 2nd Division of the Corps to Little Rock, Arkansas, and was there mustered out in August 1865.