Flamingo was laid down as YMS-238 on 11 May 1942 by Stadium Yacht Basin, Inc. of Cleveland, Ohio; launched, 12 September 1942; completed and commissioned on 23 November 1942. On 10 November 1944, YMS-238 was damaged when ammunition ship Mount Hood exploded in Seeadler Harbor at Manus Island. YMS-238 was renamed and reclassified as USS Flamingo (AMS-11) on 18 February 1947. She was further reclassified as MSC(O)-11 on 7 February 1955. Flamingo was struck from the Naval Vessel Register on 1 November 1959. Her fate is unknown.