The 7th Michigan Cavalry Regiment was a cavalry regiment that served in the Union Army during the American Civil War. It was a part of the famed Michigan Brigade, commanded for a time by Brigadier General George Armstrong Custer.

The 7th Michigan Cavalry was organized at Grand Rapids, Michigan, in October 1862 by William d'Alton Mann, a future prominent Michigan newspaper and magazine publisher. He was later named as the regiment's colonel.

The regiment was mustered out of service on December 15, 1865.

The regiment suffered 4 officers and 81 enlisted men killed in action or mortally wounded and 2 officers and 256 enlisted men who died of disease, for a total of 343 fatalities.^[1]

• Colonel William d'Alton Mann
• Colonel Allyne C. Litchfield

• Private Abram Halstead Ellis, Company C – justice of the Kansas Supreme Court, (1901–1902)
• First Sergeant Charles M. Holton, Company – Medal of Honor recipient

• List of Michigan Civil War Units
• Michigan in the American Civil War
• Mary Burns (US Civil War soldier)