The second USS Buck (DD-420), a World War II-era Sims-class destroyer in the service of the United States Navy, was named after Quartermaster James Buck, a Civil War Medal of Honor recipient. It was built by Philadelphia Naval Shipyard and launched in 1939. It was a member of the convoy carrying the US 1st Provisional Marine Brigade. She served during the Second World War. It was sunk by the German submarine U-616 on 9 October 1943 off the coast of Salerno, when it was working in support of Operation Avalanche. It received 3 battle stars for its services during the Second World War.