HMCS Moose Jaw was a Royal Canadian Navy Flower-class corvette which took part in convoy escort duties during the Second World War. Together with HMCS Chambly, she achieved the RCN's first U-boat kill of the war. She was named after Moose Jaw, Saskatchewan.

German submarine U-501 was a Type IXC U-boat of Nazi Germany's Kriegsmarine during World War II. The submarine was laid down on 12 February 1940 at the Deutsche Werft yard in Hamburg, launched on 25 January 1941 and commissioned on 30 April 1941 under the command of Korvettenkapitän Hugo Förster. The boat served with 2nd U-boat Flotilla until she was sunk on 10 September 1941.