USS Mullany (DD-528) was a Fletcher-class destroyer, the second United States Navy ship to carry the name of Rear Admiral James Robert Madison Mullany (1818–1887). The hull was first called Beatty, and the Navy renamed her Mullany on 28 May 1941.
She went down the ways on 10 October 1942 with Mrs. Elton W. Grenfell as sponsor, and she was commissioned on 23 April 1943. Baron J. Mullaney became her commanding officer that same day.
Mullany survived the war. On 25 September she sailed for the Panama Canal and duty with the Atlantic Fleet, then on 14 February 1946 she was decommissioned and laid up in reserve at Charleston, South Carolina. Returned to commission on 8 March 1951, she rejoined the Atlantic Fleet and by January 1954 had completed three Mediterranean deployments with the Sixth Fleet.
On 1 December 1954 she left Newport, Rhode Island, with Destroyer Squadron 18 for San Diego, where the squadron was redesignated Destroyer Squadron 21 for Pacific Fleet service. Over the next ten years she made eight western Pacific cruises with the Seventh Fleet, employed on patrol and training. Long Beach later served as her base for two years of reserve training along the West Coast. On 6 October 1971 the United States transferred her to Taiwan.