Glen-class tug (1943)
 The Glen class tugs were a class of tugboats of the Royal Canadian Navy built during World War II. There were three designs of tug; 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.