Bluefin

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