| Millennium: | 1st millennium |
|---|---|
| Centuries: | 8th century – 9th century – 10th century |
| Decades: | 770s 780s 790s – 800s – 810s 820s 830s |
| Years: | 803 804 805 – 806 – 807 808 809 |
| 806 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 806 DCCCVI |
| Ab urbe condita | 1559 |
| Armenian calendar | 255 ԹՎ ՄԾԵ |
| Bahá'í calendar | -1038 – -1037 |
| Bengali calendar | 213 |
| Berber calendar | 1756 |
| Buddhist calendar | 1350 |
| Burmese calendar | 168 |
| Byzantine calendar | 6314 – 6315 |
| Chinese calendar | 乙酉年十二月初八日 (3442/3502-12-8) — to —
丙戌年十一月十八日(3443/3503-11-18) |
| Coptic calendar | 522 – 523 |
| Ethiopian calendar | 798 – 799 |
| Hebrew calendar | 4566 – 4567 |
| Hindu calendars | |
| - Bikram Samwat | 862 – 863 |
| - Shaka Samvat | 728 – 729 |
| - Kali Yuga | 3907 – 3908 |
| Holocene calendar | 10806 |
| Iranian calendar | 184 – 185 |
| Islamic calendar | 190 – 191 |
| Japanese calendar | |
| Korean calendar | 3139 |
| Thai solar calendar | 1349 |