| Centuries: | 4th century · 5th century · 6th century |
| Decades: | 410s 420s 430s 440s 450s 460s 470s |
| Years: | 446 447 448 449 450 451 452 |
| 449 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 449 CDXLIX |
| Ab urbe condita | 1202 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1395 – -1394 |
| Bengali calendar | -144 |
| Berber calendar | 1399 |
| Buddhist calendar | 993 |
| Burmese calendar | -189 |
| Byzantine calendar | 5957 – 5958 |
| Chinese calendar | 戊子年十一月廿一日 (3085/3145-11-21) — to —
己丑年十二月初二日(3086/3146-12-2) |
| Coptic calendar | 165 – 166 |
| Ethiopian calendar | 441 – 442 |
| Hebrew calendar | 4209 – 4210 |
| Hindu calendars | |
| - Bikram Samwat | 505 – 506 |
| - Shaka Samvat | 371 – 372 |
| - Kali Yuga | 3550 – 3551 |
| Holocene calendar | 10449 |
| Iranian calendar | 173 BP – 172 BP |
| Islamic calendar | 178 BH – 177 BH |
| Japanese calendar | |
| Korean calendar | 2782 |
| Thai solar calendar | 992 |