USS Wagner (DER-539) was a John C. Butler-class destroyer escort in service the United States Navy from 1955 to 1960.

[3] Due to adjustments of wartime priorities and postwar cutbacks, construction of Wagner was suspended on 17 February 1947, while the ship was 61.5 percent complete.

Towed to the Naval Industrial Reserve Shipyard, Boston, Massachusetts, the ship lay "mothballed" for the next seven years, until 1 July 1954.

[3] As more sophisticated systems diminished the need for these seaborne patrols, Wagner was placed "in commission, in reserve," on 31 March 1960 and arrived at Sabine Pass, Texas, on 1 April to commence lay-up preparations.

Decommissioned in June 1960, Wagner lay in the Atlantic Fleet Reserve until struck from the Navy list on 1 November 1974.