Her Majesty's Canadian Ship (HMCS) Protecteur was the lead ship of the Protecteur-class replenishment oilers in service with the Royal Canadian Navy. She was part of Maritime Forces Pacific (MARPAC), homeported at CFB Esquimalt, British Columbia. Built by Saint John Shipbuilding and Dry Docks in Saint John, New Brunswick, she was commissioned on 30 August 1969. She was the first Canadian naval unit to carry the name Protecteur; however, there have been several units, including a base, named HMCS Protector.

HMCS Algonquin was an Iroquois-class destroyer that served in the Royal Canadian Navy (RCN) from 1973 to 2015.