Oliver Prince Smith (October 26, 1893 – December 25, 1977) was a General in the United States Marine Corps and a highly decorated combat veteran of World War II and the Korean War. He is most noted for commanding the 1st Marine Division during the Battle of Chosin Reservoir, where he said "Retreat, hell! We're not retreating, we're just advancing in a different direction." He retired at the rank of four-star general, being advanced in rank for having been specially commended for heroism in combat.