USS Grenadier (SS-525), a Tench-class submarine, was the second ship of the United States Navy to be named for the grenadier, a soft-finned deep sea fish of the Macrouridae with a long, tapering body and short, pointed tail family, also known as rattails. The contract to build her was awarded to the Boston Naval Shipyard, and her keel was laid down on 8 February 1944 in Boston, Massachusetts. She was launched on 10 February 1951 sponsored by Mrs. John A. Fitzgerald, wife of the first Grenadier’s last skipper, and commissioned the same day with Commander Henry G. Reaves, Jr. in command.