USS LST-545 was a United States Navy LST-542-class tank landing ship in commission from 1944 to 1946 LST-545 was laid down on 13 December 1943 at Evansville, Indiana, by the Missouri Valley Bridge and Iron Company.
She was launched on 12 February 1944, sponsored by Mrs. Charles M. Wright, and commissioned on 23 March 1944.
LST-545 saw no combat action during World War II.
Following the war, she performed occupation duty in the Far East until early December 1945.
She was sunk as a target on 12 May 1948 at Enewetak Atoll in the Operation Sandstone atomic bomb test series, by either the Yoke or Zebra detonations or the two of them in combination.