History
United States
Name	USS LST-551, later USS Chesterfield County
Namesake	Chesterfield County, South Carolina, and Chesterfield County, Virginia,
Builder	Missouri Valley Bridge and Iron Company, Evansville, Indiana
Laid down	15 January 1944
Launched	11 March 1944
Sponsored by	Mrs. H. Edward Lannan
Commissioned	14 April 1944
Decommissioned	10 June 1955
Renamed	USS Chesterfield County (LST-551), 1 July 1955
Recommissioned	21 December 1965
Stricken	1 June 1970
Honours and awards	1 battle star for World War II 2 campaign stars for the Vietnam War
Fate	Sold for scrapping, February 1971
General characteristics
Class and type	LST-542-class tank landing ship
Displacement	1,780 long tons (1,809 t) light 3,640 long tons (3,698 t) full
Length	328 ft (100 m)
Beam	50 ft (15 m)
Draft	Unloaded : 2 ft 4 in (0.71 m) forward 7 ft 6 in (2.29 m) aft Loaded : 8 ft 2 in (2.49 m) forward 14 ft 1 in (4.29 m) aft
Propulsion	2 × General Motors 12-567 diesel engines, two shafts, twin rudders
Speed	12 knots (22 km/h; 14 mph)
Boats & landing craft carried	2 LCVPs
Troops	Approximately 140 officers and enlisted men
Complement	8-10 officers, 100-115 enlisted men
Armament	1 × single 3-inch/50-caliber gun mount 8 × 40 mm guns 12 × 20 mm guns

USS Chesterfield County (LST-551), originally USS LST-551, was an LST-542-class tank landing ship built for the United States Navy during World War II and in commission from 1944 to 1955 and again in the late 1960s. Named after Chesterfield County, South Carolina, and Chesterfield County, Virginia, she has been the only U.S. Navy vessel to bear the name.

LST-551 was laid down on 15 January 1944 at Evansville, Indiana, by the Missouri Valley Bridge and Iron Company. She was launched on 11 March 1944, sponsored by Mrs. H. Edward Lannan, and commissioned on 14 April 1944.

During World War II, LST-551 was assigned to the European Theater of Operations and participated in the Operation Dragoon the invasion of southern France, in August and September 1944. Following the war, LST-551 performed occupation service in Europe until early July 1945. She then served with Amphibious Force, United States Atlantic Fleet, until she was decommissioned on 10 June 1955.

While out of commission, LST-551 was renamed USS Chesterfield County (LST-551) on 1 July 1955.

Chesterfield County was recommissioned on 21 December 1965 and operated on the Brown Waters Vietnam in 1966 and 1967 during the Vietnam War. Decommissioned once again in 1968, she was struck from the Naval Vessel Register on 1 June 1970 and sold to Mitsui and Company of Japan in February 1971 for scrapping.

LST-551 earned one battle star for World War II service and Chesterfield County earned two battle stars for Vietnam War service.

•  This article incorporates text from the public domain Dictionary of American Naval Fighting Ships. The entry can be found here.
• "LST-551". Dictionary of American Naval Fighting Ships. Retrieved 11 May 2007.
• "LST-551 Chesterfield County". Amphibious Photo Archive. Retrieved 11 May 2007.

• List of United States Navy LSTs
• Chesterfield County, South Carolina
• Chesterfield County, Virginia