George Lucas Hartsuff (May 28, 1830 – May 16, 1874) was an American soldier, born at Tyre, New York. He graduated at West Point in 1852, graduating 19th out of 43 in his class. He served on the frontier and in Florida, where, during a fight with the Seminole Indians near Fort Myers in December 1855, he received a wound which eventually caused his death. Hartsuff survived the wreck of the steamer Lady Elgin on Lake Michigan on September 8, 1860.