USS Koelsch (FF-1049) was a Garcia-class destroyer escort, later reclassified as a frigate, in the United States Navy. She was named for Navy helicopter pilot Lt(jg) John Kelvin Koelsch, who was awarded the Medal of Honor for actions during the Korean War. On 3 July 1951, Koelsch and his crewman attempted to rescue a downed Marine aviator from enemy territory. Under heavy fire, Koelsch's helicopter was shot down; Koelsch, his crewman, and the Marine aviator survived the crash and evaded the enemy for nine days before being captured. Lt(jg) John Koelsch died of malnutrition and dysentery in a prisoner-of-war camp three months later.