The 2nd Minnesota Cavalry Regiment was a Minnesota USV cavalry regiment that served in the Union Army during the American Civil War. The 2nd Minnesota Cavalry Regiment was mustered at Fort Snelling, Minnesota. for three year's service on December 5, 1863, and were mustered out on November 17, 1865, and May 4, 1866. It served entirely in Minnesota, Dakota Territory, and Montana Territory guarding the frontier against the Sioux Indians.