The 1st Minnesota Cavalry Regiment, also known as the Mounted Rangers, was a Minnesota USV mounted infantry regiment that served in the Union Army during the American Civil War.

The companies of the regiment were initially mustered in between October and December 1862 at St. Cloud, St. Peter and Fort Snelling for three month's service which was extended to a year.^[1] Thirty to forty men from the Renville Rangers militia volunteered at Fort Snelling when their militia was decommissioned by joining the company raised from Faribault County.^[2] The Minnesota Mounted Rangers served entirely in Minnesota and the Dakota Territory in response the hostile Santee Sioux. The men were mustered out between October and December 1863.

• Sibley's Expedition against Indians in Dakota Territory, June 16 to September 14, 1863.
• Battle of Big Mound, July 24, 1863.
• Battle of Dead Buffalo Lake, July 26, 1863.
• Battle of Stony Lake, July 28, 1863.
• Operations along the Missouri River, July 28 to 30, 1863.

• Samuel McPhaill

The 1st Minnesota Cavalry lost two officers and four enlisted men killed in action or died of wounds received in battle. An additional 31 enlisted men died of disease. Total fatalities were 37.

• List of Minnesota Civil War Units