The Glen-class tugs were a class of tugboats of the Royal Canadian Navy built during the Second World War. There were three designs of the tugboat; two were of steel-hulled construction and the other was wooden-hulled. Of the 20 of the class built, 16 were of the steel-hulled type; 11 built by Russel Bros. of Owen Sound, Ontario and 5 by Canadian Dredge & Dock Co., Kingston, Ontario. Of the four wooden-hulled type; three were built by McKenzie Barge and Derrick, Vancouver, British Columbia, and one by LeBlanc Shipbuilding, Weymouth, Nova Scotia. All but one – Glendyne – were sold into commercial service after the war.