456 (disambiguation)

456 may refer to:


 * The year 456 AD
 * The year 456 BC
 * The year 456 AH in the Islamic calendar
 * The British Rail Class 456 electric multiple unit
 * The Ferrari 456 road car
 * Seong Gi-hun of Squid Game
 * The 4, 5, 6 IRT Lexington Avenue Line
 * The 456, a race of aliens in the BBC science fiction series Torchwood
 * 456 (album), a 1992 album by The Grid
 * 4,5,6, a 1995 album by Kool G Rap
 * "4, 5, 6", a 1999 song by Solé
 * Cee-lo, a dice game also known as Four-Five-Six