999 (disambiguation)

999 may refer to:

999, the year
999 (emergency telephone number), the telephone number for the emergency services in the United Kingdom, The Republic of Ireland, Hong Kong, Macau, Singapore, Malaysia, the UAE, Poland and others
999 (number), the number 999

999, Triple nine, Three nines may also refer to:

Arts, entertainment, and media

Galaxy Express 999, a manga and anime created by Leiji Matsumoto
Nine Hours, Nine Persons, Nine Doors (2009), a graphic adventure game for the Nintendo DS, remade in 2013 for iOS
999 (band), a London punk rock band active since the 1970s
999 (Ukrainian band), a Ukrainian rock band
"999" (song), a song by Swedish alternative rock band Kent
"999", a song from Keith Richards' album Main Offender (1992)
999 (UK TV series), a 1992 British programme presented by Michael Buerk that aired on the BBC
999 (Malaysian TV series), a 2004 Malaysian crime reality television series
Triple Nine, a 1995–99 television drama from Singapore
Triple 9, a 2016 heist film

Ducati 999, an Italian motorcycle
Ford 999, a pioneering 1902 racer named for the locomotive
New York Central and Hudson River Railroad No. 999, the first steam locomotive in the United States to operate at faster than 100 mph

999 Zachia, an asteroid
9–9–9 Plan, a tax plan proposed by 2012 Republican presidential candidate Herman Cain
Triple Nine Society, a high IQ society for the top tenth of one percent of the population, as measured by IQ score
Nine (purity), an informal way of ranking purity; "three nines" would be 99.9% pure
"Three nines" as a level of High availability (99.9%)
999 phone charging myth, an urban myth that calling the emergency services charges mobile phones.