USS LST-843 was an LST-542-class tank landing ship built for the United States Navy during World War II.

LST-843 was laid down on 13 October 1944 at Ambridge, Pennsylvania, by the American Bridge Company; launched on 29 November 1944; sponsored by R. S. Dyson; and commissioned on 23 December 1944.

During World War II, LST-843 was assigned to the Asiatic-Pacific theater and participated in the assault and occupation of Okinawa Gunto from April through June 1945. Following the War, the ship performed occupation duty in the Far East and saw service in China until early December 1947. She was decommissioned on 18 December 1947, transferred to the Philippines and renamed BPR Bulacan. On 22 January 1948 the tank landing ship was struck from the Naval Vessel Register.

LST-843 earned one battle star for World War II service.

 This article incorporates text from the public domain Dictionary of American Naval Fighting Ships. The entry can be found here.

• "LST-843". Amphibious Photo Archive. Retrieved 28 June 2007.