A fin is an appendage used to produce lift and thrust or to steer while traveling in water, air, or other fluid media. Fin, FIN, or Fins may also refer to: Biology Fish fin, an anatomical feature of fish Fin fish, fish that possess fins Fin whale (Balaenoptera physalus) People Fín (died 604), Gaelic princess, wife of Oswiu of Northumbria Finns, people from Finland Fin Bartels (born 1987), German football midfielder Fin Donnelly (born 1966), Canadian politician Fin Dow-Smith, (born 1988), British songwriter Fin Leavell, American musician Fin Taylor, (born 1990), English stand-up comedian Fin Wilson (1888–1959), American professional baseball pitcher Henri Fin (born 1950), French cyclist Legendary and fictional characters Fin (comics), the name of two characters from Marvel Comics Fin (troll), in Danish legend Fin the Whale, the mascot of the Vancouver Canucks Fin Tutuola, a fictional character on the TV drama Law & Order: Special Victims Unit Places Fin, Iran, a city Fins, Somme, a commune in France Fin District, Iran Fin Garden, in Kashan, Iran Fin Island, in British Columbia, Canada Fin Rural District, Iran Finland Music Fin (band), an English indie rock band Fin (John Talabot album), 2012 Fin (Syd album), 2017 "Fin" (song), a 2006 song by Supergrass "Fin", 1986 song by Akina Nakamori "Fin", by Christie Front Drive from Christie Front Drive, 1997 "Fins" (song), a 1979 song by American singer Jimmy Buffett "(*Fin)", a song by Anberlin from their 2007 album Cities Sport Federazione Italiana Nuoto, the Italian Swimming Federation Miami Dolphins, an American football team Surfboard fin, a hydrofoil mounted at the tail of a surfboard Swimfin, a fin-like shoe used to help movement through the water Technology Fin (extended surface), on a radiator Fin (submarine), a tower-like structure on the topside surface of submarines Finnair, a Finnish airline Other uses Fin (geology), narrow, residual walls of hard sedimentary rock Finnish language, by ISO 639-2 language code The Australian Financial Review, an Australian business newspaper Facility ID number, assigned by the United States Federal Communication Commission Force identification number Internationalist League of Norway (Norwegian: ) United States five-dollar bill See also Finn (disambiguation) Fin de siècle (disambiguation) Tail fin (disambiguation)