James M. Cumpston
Born	c. 1837 Gallia County, Ohio
Died	(1888-05-24)May 24, 1888 Ohio
Place of burial	Coalton Cemetery, Coalton, Ohio
Allegiance	United States
Service / branch	United States Army Union Army
Rank	Private
Unit	91st Ohio Volunteer Infantry Regiment
Battles / wars	American Civil War  • Valley Campaigns of 1864
Awards	Medal of Honor

James M. Cumpston (c. 1837 – May 24, 1888) was a Union Army soldier during the American Civil War. He received the Medal of Honor for gallantry during the Valley Campaigns of 1864. Although his military records are under Cumpston, his surname is correctly spelled Compston.

The President of the United States of America, in the name of Congress, takes pleasure in presenting the Medal of Honor to Private James M. Cumpston, United States Army, for extraordinary heroism from August to November, 1864, while serving with Company D, 91st Ohio Infantry, in action in the Shenandoah Valley Campaign, Virginia, for capture of flag.

• List of Medal of Honor recipients
• List of American Civil War Medal of Honor recipients: A–F

• "James M. Cumpston". Hall of Valor. Military Times.

• Military Times Hall of Valor
• Findagrave entry