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 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 album by producer John Talabot
• Fin (Syd album), 2017 album by Syd
• "Fin", 1986 hit single by Akina Nakamori
• "Fin" (song), a 2006 song by Supergrass
• "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
• 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: Forbundet Internasjonalen i Noreg)
• United States five-dollar bill

See also

• Finn (disambiguation)
• Fin de siècle (disambiguation)
• Tail fin (disambiguation)