USS Millard County (LST-987) was an LST-542-class tank landing ship built for the United States Navy during World War II. Named after Millard County, Utah, it was the only U.S. Naval vessel to bear the name. Originally laid down as LST-987 on 2 February 1944 at the Boston Navy Yard; launched on 5 March 1944; and commissioned on 19 April 1944 with Lieutenant William H. Pennington in command.