440
| Years: 436 437 438 439 - 440 - 441 442 443 444 | |
| Decades: 410s 420s 430s - 440s - 450s 460s 470s | |
| Centuries: 4th century - 5th century - 6th century | |
Events
- September 29 - Leo succeeds Sixtus as Pope.
- Northern China is unified by the Wei Dynasty.
- Geiseric, king of the Vandals, captures Sicily.
- Bodhidharma was a semi-legendary Indian monk
- February 17 - Saint Mesrob, Armenian monk
- August 18 - Pope Sixtus III
- Paulinus, the master of the offices in Constantinople is executed.