USS Mullinnix (DD-944) was a Forrest Sherman-class destroyer of the United States Navy. She was named for Admiral Henry Maston Mullinnix USN (4 Jul 1892 - 24 Nov 1943), who was killed in action during World War II, when the aircraft carrier USS Liscome Bay was torpedoed by the Japanese submarine I-175 and sank southwest of Butaritari Island on 24 November 1943.
The Mullinnix was built by the Bethlehem Steel Corporation's Fore River Shipyard in Quincy, Massachusetts, and launched by Mrs. Kathryn F. Mullinnix.
She measured 418 feet overall with a beam of 45 feet and a draft of 22 feet. Propulsion supplied by 4 x 1,200 psi boilers feeding Westinghouse steam turbines. Her top speed was 32.5 knots with a range of 4,500 nautical miles. Ship's complement included 15 officers and 218 enlisted.
Mullinnix conducted patrol duty in the Caribbean during the Cuban Missile Crisis in 1962, participated in the Gemini program recovery operations in March 1966, and served as plane guard for aircraft carriers on Yankee Station in the Tonkin Gulf, participated in Sea Dragon operations, patrolled on search and rescue duties, and carried out naval gunfire support missions during the Vietnam War.