USFC Grampus was a fisheries research ship in commission in the fleet of the United States Commission of Fish and Fisheries, usually called the United States Fish Commission, from 1886 to 1903 and then as USFS Grampus in the fleet of its successor, the United States Bureau of Fisheries, until 1917. She was a schooner of revolutionary design in terms of speed and safety and influenced the construction of later commercial fishing schooners.