Hector Albert Cafferata, Jr., USMCR (Retired) (born November 4, 1929) is a United States Marine who received the Medal of Honor for his heroic service at the Battle of Chosin Reservoir during the Korean War. In November 1950, Pvt Cafferata single-handedly held off a regimental-strength enemy and saved the wounded Marines by hurling away a live grenade that had landed in their midst, at the cost of serious personal injury.