911, 9/11 or Nine Eleven may refer to:
Dates AD 911 911 BC September 11 (9/11 in the month/day date format) The 2001 September 11 attacks on the US by al-Qaeda, commonly referred to as 9/11 11 de Septiembre, Chilean coup d'état in 1973 that ousted the democratically elected Salvador Allende Revolution of 11 September 1852, the revolt of the Buenos Aires Province against the government of Justo José de Urquiza November 9 (9/11 in the day/month date format) 9 November in German history, several historical events that occurred in present-day Germany
Numbers 911 (number) 911 (emergency telephone number), in countries mostly in North America 911 (Philippines), an emergency telephone number in the Philippines
Film 9/11: The Twin Towers, a 2006 documentary special about the 9/11 attacks 9/11 (2002 film), a documentary about the 9/11 attacks 9/11 (2017 film), a drama about the 9/11 attacks
Literature 9-11 (Noam Chomsky), a collection of essays by and interviews with Noam Chomsky 9-11: Artists Respond, Volume One, a benefit comic published by Dark Horse Comics, Chaos! Comics, and Image Comics 9-11: Emergency Relief, a benefit comic published by Alternative Comics
Music Groups 911 (group), a boy band formed in 1995 Nine One One (band), a Taiwanese hip hop group formed in 2009
Albums 9.11 (album), 2001, by Ron "Bumblefoot" Thal
Songs "911" (Wyclef Jean song) (2000) "911" (Gorillaz and D12 song) (2001) "911 / Mr. Lonely", 2017, by Tyler, the Creator "911" (Lady Gaga song) (2020) "911", 1986, by Cyndi Lauper from True Colors "911", 2012, by Rick Ross from God Forgives, I Don't "911", 2021, by Sech "Emergency (911)", 2009, by Jordin Sparks from Battlefield
Television 9-1-1 (TV series), a 2018 American procedural drama series 9-1-1: Lone Star, a 2020 spinoff of 9-1-1 9-1-1: Nashville, a 2025 spinoff of 9-1-1 "911" (Law & Order: Special Victims Unit), a 2005 episode of Law & Order: Special Victims Unit "911" (Dexter's Laboratory), a 1997 episode of Dexter's Laboratory
Transportation Porsche 911, a series of German sports cars BOAC Flight 911, a flight that crashed in 1966 HTMS Chakri Naruebet (CVH-911), an aircraft carrier of the Royal Thai Navy List of highways numbered 911
Other uses 911 (wrestler), an American professional wrestler 911 Agamemnon, an asteroid 911 Battalion (SWATF), a Namibian military unit Leyton House CG911, a Formula One racing car Springfield Armory 911, a semi-automatic pistol
See also "911 Is a Joke", a 1990 song by Public Enemy Reno 911!, an American comedy television series Reno 911!: Miami, a 2007 cop comedy movie based on the series Rescue 911, an CBS docudrama series based on real emergencies September 11 attacks (disambiguation) List of comics about the September 11 attacks