HMCS Penetang was a River-class frigate that served in the Royal Canadian Navy from 1944-1945 and as a Prestonian-class frigate from 1954-1956. Built by Davie Shipbuilding & Repairing Co. Ltd., Lauzon, she was commissioned into the RCN on 19 October 1944 with the pennant K676. She was placed in reserve in 1945 and reactivated in 1953. She underwent conversion to a Prestonian-class frigate from 1953-1954 and was recommissioned with pennant 316 on 1 June 1954.