USS LST-999 was an LST-542-class tank landing ship in the United States Navy. Like many of her class, she was not named and is properly referred to by her hull designation.

History
United States
Name	USS LST-999
Laid down	8 April 1944
Launched	14 May 1944
Commissioned	30 June 1944
Decommissioned	29 July 1946
Fate	Sold, 3 November 1947
Stricken	25 September 1946
Honours and awards	three battle stars
General characteristics
Class and type	LST-542-class LST
Displacement	1,490 tons (light); 4,080 tons (full load of 2,100 tons)
Length	328 ft (100 m)
Beam	50 ft (15 m)
Draft	8 ft (2.4 m) forward; 14 ft 4 in (4.37 m) aft (full load)
Propulsion	Two diesel engines, two shafts
Speed	10.8 knots (20 km/h) (max); 9 knots (17 km/h) (econ)
Complement	7 officers, 204 enlisted
Armament	8 × 40 mm guns; 12 × 20 mm guns

LST-999 was laid down on 8 April 1944 at the Boston Navy Yard; launched on 14 May 1944; and commissioned on 30 May 1944.

During World War II LST-999 was assigned to the Asiatic-Pacific theater and participated in the following operations:

Leyte landings—October 1944

Mindanao Island landings—April 1945

Assault and occupation of Okinawa Gunto — March through June 1945

LST-999 returned to the United States and was decommissioned on 29 July 1946 and struck from the Navy list on 25 September that same year. 3 November 1947, the ship was sold to Dulien Steel Products, Inc., Seattle, Wash., for scrapping.

LST-999 earned three battle stars for World War II service.