USS De Soto County (LST-1171) was a De Soto County-class tank landing ship built for the United States Navy during the late 1950s. The lead ship of her class of seven, she was named after counties in Florida, Louisiana, and Mississippi, the only U.S. Naval vessel to bear the name. De Soto County was laid down 15 September 1956 at Avondale, Louisiana by Avondale Marine Ways, Inc.; launched on 28 February 1957; sponsored by Mrs. C. Horton Smith; and commissioned on 10 June 1958 with Lieutenant Commander Daniel A. York in command.