Fluke
Fluke may refer to:

Biology
Fluke (fish), a species of marine flatfish
Fluke (tail), the lobes of the tail of a cetacean, such as dolphins or whales, ichthyosaurs, mosasaurs, plesiosaurs, and metriorhynchids.
Fluke (flatworm), parasitic flatworms in the class Trematoda
Blood fluke
Liver fluke

Arts and entertainment
Fluke (album), a 1995 album by Canadian rock band Rusty
Fluke (band), a British electronic dance music group
Fluke (film), a 1995 film directed by Carlo Carlei
Fluke (General Hospital), a character in the American television series General Hospital
Fluke (novel), a 1977 novel by English horror writer James Herbert
Fluke, or, I Know Why the Winged Whale Sings, a 2003 novel by Christopher Moore
Fluke Mini-Comics & Zine Festival, a one-day mini-comics, small press, and 'zine festival held annually in Athens, Georgia

People
Emily Fluke, American ice hockey player
Joanne Fluke (born c. 1940), American author
John Fluke (1911–1984), American engineer, Founder & CEO of Fluke Corporation
Louise Fluke (1900–1986), designer of the Flag of Oklahoma
Sandra Fluke  (born 1981), attorney, feminist, LGBTQ activist
Gawin Caskey (born 1997), Thai actor, nicknamed Fluke
Natouch Siripongthon (born 1996), Thai actor, nicknamed Fluke

Other uses
Fluke (anchor), blades at the end of an anchor
Fluke (cue sports), an unintentionally fortuitous shot in cue sports such as snooker
Fluke Corporation, a manufacturer of electrical and electronic test equipment
Fluke Ridge, Artistotle Mountains, Graham Land, Antarctica
Snow fluke, an anchoring device for climbing and camping

See also
Coincidence
Flook (disambiguation)
Fluker (disambiguation)
One-off (disambiguation)