USS Castle (DD-720)

USS Castle (DD-720) was a planned United States Navy Gearing-class destroyer laid down during World War II but never completed. Castle was laid down on 11 July 1945 by the Federal Shipbuilding and Drydock Company at Newark, New Jersey. The end of World War II in August 1945 resulted in the termination of the contract for her construction on 11 December 1945. Although the award of the contract was reinstated, work on Castle was suspended on 11 February 1946. A little over five months later, on 18 July 1946, the Commandant, 3rd Naval District, was authorized to accept Castle in an uncompleted state.

Delivered as 60.3% complete, Castle was slated for scrapping in a Congressional resolution approved on 23 August 1954. Her name was stricken from the Naval Vessel Register on 2 November 1954, and she was sold for scrapping on 29 August 1955.