USNS Flyer (T-AG-178), was a type C2-S-B1 cargo ship of the United States Navy, built under Maritime Commission contract (MC hull 1209) by the Moore Dry Dock Company of Oakland, California as SS Water Witch. The keel was laid on 30 October 1944, and the ship launched on 20 December 1944, sponsored by Miss. Margaret Helen Finnel.