List of American Civil War regiments by state

A list of American Civil War regiments organized into federally organized units as well as units raised by individual states and territories. As multiple states had soldiers fighting both for the United States (U.S. Army/Union Army) and the Confederate States (C.S. Army), forces from states which did not fall under Union or Confederate control are noted as such.

Federal organized

 * United States Colored Troops
 * United States Regular Army
 * United States Volunteers

State forces

 * Alabama (Union)
 * Arkansas (Union)
 * California
 * Colorado
 * Connecticut
 * Delaware
 * Florida (Union)
 * Georgia (Union)
 * Illinois
 * Indiana
 * Iowa
 * Kansas
 * Kentucky
 * Louisiana (Union)
 * Maine
 * Maryland
 * Massachusetts
 * Michigan
 * Minnesota
 * Missouri
 * Nebraska
 * Nevada
 * New Hampshire
 * New Jersey
 * New York
 * North Carolina (Union)
 * Ohio
 * Oregon
 * Pennsylvania
 * Rhode Island
 * South Carolina (Union)
 * Tennessee (Union)
 * Vermont
 * Virginia (Union)
 * West Virginia
 * Wisconsin

Territories

 * Dakota Territory
 * New Mexico Territory
 * Washington Territory

Federal organized

 * Confederate States Army units

State forces

 * Alabama
 * Arkansas
 * California (Confederate)
 * Florida
 * Georgia
 * Kentucky
 * Louisiana
 * Maryland (Confederate)
 * Mississippi
 * Missouri
 * North Carolina
 * South Carolina
 * Tennessee
 * Texas
 * Virginia (Confederate)
 * West Virginia (Confederate)

Territories

 * Arizona Territory
 * Indian Territory (also known as Oklahoma)