• AD 911
• 911 BC
• September 11
  • The September 11 attacks on the United States by al-Qaeda, commonly referred to as 9/11
  • 11 de Septiembre, Chilean coup d'état in 1973 that outed the democratically elected Salvador Allende
• November 9

• 911 (number)
• 911 (emergency telephone number), an emergency telephone number in place mostly in North America
  • 911 (Philippines), an emergency telephone number in the Philippines

• 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 film about the 9/11 attacks

• 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

Groups edit

• 911 (English group), a boy band formed in 1995
• Nine One One (band), a Taiwanese hip hop group formed in 2009

Albums edit

• 9.11 (album), a 2001 album by Ron "Bumblefoot" Thal

Songs edit

• "911" (Wyclef Jean song) (2000)
• "911" (Gorillaz and D12 song) (2001)
• "911" (King Giddra song) (2002)
• "911 / Mr. Lonely", a 2017 song by Tyler, the Creator
• "911" (Lady Gaga song) (2020)
• "911", a 1986 song by Cyndi Lauper from True Colors
• "911", a 2012 song by Rick Ross from God Forgives, I Don't
• "911", a 2021 song by Sech
• "Emergency (911)", a 2009 song by Jordin Sparks from Battlefield

• 9-1-1 (TV series), a 2018 American procedural drama series
• 9-1-1: Lone Star, a 2020 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

• 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

• 911 (wrestler), an American professional wrestler
• 911 Agamemnon, an asteroid
• 911 Battalion (SWATF), a Namibian military unit
• Springfield Armory 911, a semi-automatic pistol

• "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