| Centuries: | 4th century · 5th century · 6th century |
| Decades: | 400s 410s 420s 430s 440s 450s 460s |
| Years: | 428 429 430 431 432 433 434 |
| 431 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 431 CDXXXI |
| Ab urbe condita | 1184 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1413 – -1412 |
| Bengali calendar | -162 |
| Berber calendar | 1381 |
| Buddhist calendar | 975 |
| Burmese calendar | -207 |
| Byzantine calendar | 5939 – 5940 |
| Chinese calendar | 庚午年十二月初二日 (3067/3127-12-2) — to —
辛未年十一月十二日(3068/3128-11-12) |
| Coptic calendar | 147 – 148 |
| Ethiopian calendar | 423 – 424 |
| Hebrew calendar | 4191 – 4192 |
| Hindu calendars | |
| - Bikram Samwat | 487 – 488 |
| - Shaka Samvat | 353 – 354 |
| - Kali Yuga | 3532 – 3533 |
| Holocene calendar | 10431 |
| Iranian calendar | 191 BP – 190 BP |
| Islamic calendar | 197 BH – 196 BH |
| Japanese calendar | |
| Korean calendar | 2764 |
| Thai solar calendar | 974 |