USS Thetis has been the name of more than one United States Navy ship, and may refer to:
, a steamer in commission in 1884 and from 1887 to 1897 , a patrol vessel in commission from 1917 to 1919 , a United States Coast Guard patrol craft in commission from 1931 to 1947 that was commissioned in the US Navy from 1941 to 1945 as USS Thetis
See also
, United States Coast Guard ships of the name