USCGC Raritan (WYT-93/WYTM-93) was a United States Coast Guard 110 ft (34 m) harbor tug that was in service from 1939 to 1988.

Raritan was built for the Coast Guard by Defoe Boat Works, Bay City, Michigan, at a cost of US$309,000 and was launched alongside her sister cutter Naugatuck on 23 March 1939, the first dual launching to ever take place in Bay City.

Because of the Coast Guard's experience with the International Ice Patrol and because it operated the only ships that were equipped to handle ice conditions in Greenland waters, the State Department requested Coast Guard assistance in enforcing claims of sovereignty and to prevent Germany from taking control of the cryolite mines at Ivittuut and establishing weather stations on the Eastern coastline.

Raritan continued to be homeported at Boston under U.S. Navy control but was manned by Coast Guard personnel.

After the Coast Guard was returned to the Treasury Department on 1 January 1946 in accordance with Executive Order 9666, Raritan continued to operate in Boston Harbor.