USS LST-900 was an LST-542-class tank landing ship in the United States Navy during World War II. Late in her career, she was renamed Linn County (LST-900)—after counties in Iowa, Kansas, Missouri, and Oregon—but saw no active service under that name. LST-900 was laid down on 1 October 1944 at Pittsburgh, Pennsylvania, by the Dravo Corp.; launched on 9 December 1944; sponsored by Mrs. Felix R. Konkle; and commissioned on 6 January 1945, Lieutenant Neil A. McClaflin in command. LST-900 earned one battle star for World War II service.