999 or triple nine most often refers to: * 999 (emergency telephone number), a telephone number for the emergency services in several countries * 999 (number), an integer * AD 999, a year * 999 BC, a year


* ''999'' (anthology) or ''999: Twenty-nine Original Tales of Horror and Suspense'', a 1999 anthology of short stories * '' Galaxy Express 999'', a manga and anime created by Leiji Matsumoto

Film and TV

* '' Triple 9'', a 2016 heist-thriller film * ''999'' (UK TV series), a British programme presented by Michael Buerk that aired on the BBC * ''999'' (Malaysian TV series), a 2004 Malaysian crime reality television series * '' 999: What's Your Emergency?'', a 2012 British factual programme following the emergency service * ''Triple Nine'' (TV series), a Singaporean television series running from 1995 to 1999


* 999 (band), a London punk rock band active since the 1970s * ''999'' (album), a self-titled album by the band 999 * 999 (Selena Gomez and Camilo song) * "999" (Kent song) * "999", a song from Keith Richards' album '' Main Offender'' (1992) * 999, a number often used by
Juice WRLD Jarad Anthony Higgins (December 2, 1998 – December 8, 2019), known professionally as Juice Wrld (pronounced "juice world"; stylized as Juice WRLD), was an American rapper, singer, and songwriter. He was a leading figure in the emo rap and ...


Ducati 999 The Ducati 999 is a sport bike made by Ducati from 2003 to 2006. It superseded the Massimo Tamburini designed Ducati 916, Ducati 996 and Ducati 998 range of superbikes. This motorcycle enjoyed great success in World Superbike, and was race ...
, an Italian motorcycle * New York Central and Hudson River Railroad No. 999, the first steam locomotive in the United States to operate at faster than 100 mph * Ford 999, a pioneering 1902 racer named for the locomotive

Other uses

* 999 Zachia, an asteroid * 9–9–9 Plan, a tax plan proposed by 2012 Republican presidential candidate Herman Cain *
999 phone charging myth The 999 phone charging myth is an urban legend that claims that if a mobile phone has low battery then dialling 999 (or any regional emergency telephone number) charges the phone so it has more power. This was confirmed as untrue by several Brit ...
, an urban myth that calling the emergency services charges mobile phones *
Nine (purity) Nines are an informal, logarithmic notation for proportions very near to one, or equivalently percentages very near 100%. Their common uses include grading the purity of materials. Put simply, "nines" are the number of consecutive nines in a perce ...
, an informal way of ranking purity; "three nines" would be 99.9% pure * "Three nines" as a level of
high availability High availability (HA) is a characteristic of a system which aims to ensure an agreed level of operational performance, usually uptime, for a higher than normal period. Modernization has resulted in an increased reliance on these systems. F ...
(99.9%) *
Triple Nine Society The Triple Nine Society (TNS) is an international high IQ society for adults whose score on a standardized test demonstrates an IQ at or above the 99.9th percentile of the human population. The society recognizes scores from over 20 different ...
, a society for people with IQs in the 99.9th percentile * Nine Hours, Nine Persons, Nine Doors, a 2009 video game developed by Chunsoft

See also

* 0.999... for proofs that 0.999... is equal to 1 {{Number disambiguation