USS ''Cythera'' may refer to the following ships of the
United States Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage ...
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* , a patrol yacht launched on 20 September 1906 which served in World War I as USS ''Cythera'' (SP-575) and in World War II as USS ''Cythera'' (PY-26) until torpedoed and sunk by a German submarine in 1942.
* , a patrol yacht that the Navy purchased on 14 July 1942 and placed out of service on 14 March 1946.
{{DEFAULTSORT:Cythera
United States Navy ship names