Eugene W. Ferris (November 18, 1842 – February 26, 1907) was a United States soldier who fought with the 30th Regiment Massachusetts Volunteer Infantry during the American Civil War.

He received his nation's highest award for bravery during combat, the U.S. Medal of Honor, for resisting an attack by enemy cavalrymen near Berryville, Virginia on April 1, 1865.

After enrolling at Lowell, Massachusetts as a sergeant with that regiment's D Company,[5] he was commissioned as an officer the following August, eventually rising up through the ranks to become a captain before war's end.

[8] A different account, penned in 1915 by Samuel Scoville, stated that Ferris and the Confederate officer "were armed only with sabres", and that Ferris gained the element of surprise when he "spurred his horse at the guerrilla-leader and suddenly executing a demi-volte which is only effective when performed by a good sabre and a trained horse ... whirled like lightning and caught his opponent such a tremendous back-handed slash that he cut him almost to the saddle."

[9] In June 1865, he was appointed Acting Aide de Camp for Brigadier-General George L. Beal, the commanding officer of the Headquarters, Military District of Eastern South Carolina, 3rd Separate Brigade, which was based in Georgetown County.

[12] Following his honorable discharge from the military, Ferris worked in South Carolina for a time, where he was appointed as a state elections commissioner for Georgetown County in 1870[13] and, in 1873, as a tax collector for the U.S. Internal Revenue Service.