| Millennium: | 1st millennium |
|---|---|
| Centuries: | 8th century – 9th century – 10th century |
| Decades: | 780s 790s 800s – 810s – 820s 830s 840s |
| Years: | 811 812 813 – 814 – 815 816 817 |
| 814 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 814 DCCCXIV |
| Ab urbe condita | 1567 |
| Armenian calendar | 263 ԹՎ ՄԿԳ |
| Bahá'í calendar | -1030 – -1029 |
| Bengali calendar | 221 |
| Berber calendar | 1764 |
| Buddhist calendar | 1358 |
| Burmese calendar | 176 |
| Byzantine calendar | 6322 – 6323 |
| Chinese calendar | 癸巳年十二月初六日 (3450/3510-12-6) — to —
甲午年十一月十六日(3451/3511-11-16) |
| Coptic calendar | 530 – 531 |
| Ethiopian calendar | 806 – 807 |
| Hebrew calendar | 4574 – 4575 |
| Hindu calendars | |
| - Bikram Samwat | 870 – 871 |
| - Shaka Samvat | 736 – 737 |
| - Kali Yuga | 3915 – 3916 |
| Holocene calendar | 10814 |
| Iranian calendar | 192 – 193 |
| Islamic calendar | 198 – 199 |
| Japanese calendar | |
| Korean calendar | 3147 |
| Thai solar calendar | 1357 |