USS ''Mercer'' may refer to the following ships operated by 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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* , was acquired by the US Navy 16 January 1919 and decommissioned 26 May 1919
* , is a barracks craft commissioned 19 September 1945 and currently in active service
{{DEFAULTSORT:Mercer
United States Navy ship names