The 1st Wisconsin Cavalry Regiment was a volunteer cavalry regiment that served in the Union Army during the American Civil War.

The 1st Wisconsin Cavalry mustered into Federal service on March 10, 1862.

[1] The regiment participated in the capture of Confederate President Jefferson Davis on May 10, 1865.

The 1st Wisconsin Cavalry initially recruited 1,124 officers and men.

[2] The regiment suffered 6 officers and 67 enlisted men killed or died from wounds in action, and 7 officers and 321 enlisted men who died of disease, for a total of 401 fatalities.