The Nantucket (LCS 27) is the 14th ship in the Freedom-class littoral combat ships and the third ship in the United States Navy to be named after Nantucket Island, Massachusetts.

October 9, 2019 The keel authentication ceremony for the future-USS Nantucket was held at the Fincantieri Marinette Marine Corp. shipyard in Marinette, Wisconsin.

August 7, 2021 The Pre-Commissioning Unit (PCU) Nantucket was christened and launched during a 10 a.m. CST ceremony at Marinette Marine shipyard. Mrs. Sarah P. Spencer, the wife of 76th U.S. Secretary of the Navy Richard V. Spencer, served as sponsor of the ship.