USS McNair (DD-679) was a Fletcher-class destroyer of the United States Navy, named for Rear Admiral Frederick V. McNair, Sr., (1839–1900). McNair was laid down 30 June 1943 by the Federal Shipbuilding & Dry Dock Co., Kearny, N.J.; launched 14 November 1943; sponsored by Mrs. F. V. McNair, Jr., daughter-in-law of Rear Admiral McNair; and commissioned on 30 December 1943, Commander M. L. McCullough, Jr., in command.