HMCS Magog was a River-class frigate that served in the Royal Canadian Navy (RCN) during the Second World War. She was used primarily as a convoy escort. On 14 October 1944, she was torpedoed by U-1223. She survived the attack, was towed to port and declared a constructive total loss. Magog was named for the town of Magog, Quebec.Magog was ordered in October 1941 as part of the 1942-1942 River-class building program. She was laid down on 16 June 1943 by Canadian Vickers Ltd.