Bluefin or Blue Fin and variants may refer to:

Fish Bluefin tuna, multiple species of tuna Bluefin damsel (Neoglyphidodon melas), damselfish Bluefin driftfish (Psenes pellucidus) Bluefin gurnard (Chelidonichthys kumu), fish in the sea robin family Bluefin stoneroller (Campostoma pauciradii), fish in the family Cyprinidae Bluefin trevally (Caranx melampygus), marine fish in the jack family False bluefin trevally (Carangoides orthogrammus), fish in the jack family

Other uses Blue Fin, a 1978 Australian family movie Bluefin Robotics, a maker of autonomous underwater vehicles Bluefin-21, an underwater vehicle used in the Malaysia Airlines Flight 370 search Bluefin Labs, Massachusetts television analytics company New York Bluefins, a professional ice hockey team based in New York in the Federal Hockey League (2010–2013) MV Blue Fin, a cargo ship built in 1945 and sunk in 1965 Project Bluefin, a Linux system created by Universal Blue, designed for reliability, performance, and sustainability.

See also