CCG may refer to:
CCGS John G. Diefenbaker is the name for a Canadian Coast Guard icebreaker that is expected to join the fleet in 2021–2022. She was initially expected to be in service by 2017. Her namesake, John G.
CCGS Amundsen is a Pierre Radisson-class icebreaker and Arctic research vessel operated by the Canadian Coast Guard.
CCGS Louis S. St-Laurent is a Canadian Coast Guard Heavy Arctic Icebreaker. Louis S. St-Laurent's home port is St.
CCGS Sir Wilfrid Laurier is a Martha L. Black-class light icebreaker and major navaids tender of the Canadian Coast Guard.
CCGS Griffon is a Canadian Coast Guard (CCG) High Endurance Multi-Tasked Vessel and Light Icebreaker stationed in Prescott, Ontario, Canada.
CCGS Labrador was a Wind-class icebreaker. First commissioned on 8 July 1954 as Her Majesty's Canadian Ship (HMCS) Labrador (pennant number AW 50) in the Royal Canadian Navy (RCN), Captain O.C.S.
CCGS Sir William Alexander is a Martha L. Black-class light icebreaker. Entering service in 1987, the vessel is currently assigned to CCG Maritimes Region and is homeported at CCG Base Dartmouth, in Dartmouth, Nova Scotia.
CCGS Henry Larsen is a Canadian Coast Guard Improved Pierre Radisson-class icebreaker serving in the Newfoundland and Labrador region and based in St John's, Newfoundland and Labrador.
CCGS Pierre Radisson is the lead ship of her class of icebreakers. Constructed and operated by the Canadian Coast Guard, the vessel is based at Quebec City at the mouth of the Saint Lawrence River in the Gulf of St.