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
• The 4, 5, 6 IRT Lexington Avenue Line
• The 456, a race of aliens in the BBC science fiction series Torchwood
• 456, a 1992 album by The Grid