US FWS Dennis Winn was an American cargo liner in commission in the fleet of the United States Fish and Wildlife Service from 1948 to 1960. She frequently provided a passenger and cargo service to and from the Pribilof Islands, and also carried passengers and cargo to and between other communities and FWS stations in the Territory of Alaska. Prior to her fisheries service, she was the United States Army cargo ship U.S. Army Lt. Walter J. Will (FS-244).