List of Arkansas Civil War Union units

Like almost all Southern states during the American Civil War, Arkansas provided a number of units to fight for the Union, organized from African-Americans and pro-Union sympathizers.

Arkansas had the third smallest white population out of the Confederate states, but more whites joined the Union Army from that state than any other besides Tennessee.

[1] In addition, 5,526 African-Americans served in Union units raised in Arkansas.

[2] The list of Confederate units is shown separately.