HMCS Festubert was one of twelve Battle-class naval trawlers constructed for and used by the Royal Canadian Navy (RCN) during the First World War. Following the war, Festubert remained in Canadian service as a training ship until 1934. Reactivated for the Second World War, the ship was used as a gate vessel in the defence of Halifax, Nova Scotia and re-designated Gate Vessel 17. Following the war, the trawler was sold for commercial use and renamed Inverleigh. Inverleigh was scuttled off Burgeo, Newfoundland on 30 June 1971.

The Battle-class trawlers were a class of naval trawlers built for and used by the Royal Canadian Navy (RCN) during the First World War. Between the wars, some remained in RCN service, but most were transferred to the Department of Marine and Fisheries, where they performed a number of functions, including working as lightships and fisheries patrol vessels. During the Second World War, a number of these trawlers were re-acquired by the RCN, but all the navy's Battle-class trawlers were decommissioned soon after the war. A number of the class remained in civilian government and commercial service for years after the war, although most had been disposed of by the early 1960s.