The USCGC Mesquite (WLB-305) was a 180-foot seagoing buoy tender (WLB). A Mesquite class vessel, it was built by Marine Ironworks and Shipbuilding Corporation in Duluth, Minnesota. Mesquite's preliminary design was completed by the United States Lighthouse Service and the final design was produced by Marine Iron and Shipbuilding Corporation in Duluth. On 20 August 1942 the keel was laid. It was launched on 14 November 1942 and commissioned on 27 August 1943. The original cost for the hull and machinery was $874,798.