USS Mariner may refer to the following ships of the United States Navy:
, formerly the steam tugboat Jack T. Scully, was built in 1899 and delivered to the US Navy in 1917. She was lost at sea and stricken in 1918. , a steam tug, was built in 1906, and taken over by the US Navy in 1918. She was returned to her owner and stricken in 1919. is an unmanned surface vehicle operated by the U.S. Navy as part of the Ghost Fleet Overlord drone ships.
See also , a United States Army research vessel