12

Twelve or 12 may refer to:

• 12 (number), the natural number following 11 and preceding 13
• December, the twelfth and final month of the year
• Dozen, a group of twelve.

• 12 BC
• AD 12
• 1912
• 2012

• Twelve (2010 film), based on the 2002 novel
• 12 (2007 film), by Russian director and actor Nikita Mikhalkov
• 12 (2003 film), by American filmmaker Lawrence Bridges

• 12: The Elements of Great Managing, a 2006 business book by Rodd Wagner and James K. Harter
• Age 12, 2012 manga by Nao Maita
• Twelve (novel), 2002 novel by Nick McDonell
• Twelve, a 2007 novel by Lauren Myracle, part of The Winnie Years
• Twelve (publisher), an imprint of Grand Central Publishing
• Twelve, a 2009 novel by Jasper Kent

• 12 (The Notwist album), 1995
• 12 (Herbert Grönemeyer album), 2007
• 12 (Keller Williams album), 2007
• 12 (Fiskales Ad-Hok album), 2009
• 12 (ASAP Twelvyy album), 2017
• 12 (Sloan album), 2018
• 12 (American Song Book), Mina album, 2012
• 12 (Ryuichi Sakamoto album), 2023
• 12!, Sonny Stitt album, 1972
• Twelve (Cobalt 60 album), 1998
• Twelve (Patti Smith album), 2007
• Twelve (Iz*One album), 2020
• "12", Westside Gunn Mixtape, 2025
• "12", a song by Insane Clown Posse from the album Riddle Box
• "12", a song by The 1975 from the album The 1975
• "12", a song by Mirror, 2021

• Twelve (company), a chemical technology company in Berkeley, California
• Twelve (Street Fighter), a video game character from the Street Fighter series
• iOS 12, an operating system by Apple
• 12 Victoria, an asteroid in the asteroid belt
• 12, a slang term for law enforcement
• Tatra 12, a mid-size car
• Rover 12, various mid-size cars produced by Rover
• Renault 12, a mid-size family car
• Line 12, various rapid transit lines.