| Millennium: | 1st millennium |
|---|---|
| Centuries: | 8th century – 9th century – 10th century |
| Decades: | 770s 780s 790s – 800s – 810s 820s 830s |
| Years: | 799 800 801 – 802 – 803 804 805 |
| 802 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 802 DCCCII |
| Ab urbe condita | 1555 |
| Armenian calendar | 251 ԹՎ ՄԾԱ |
| Bahá'í calendar | -1042 – -1041 |
| Bengali calendar | 209 |
| Berber calendar | 1752 |
| Buddhist calendar | 1346 |
| Burmese calendar | 164 |
| Byzantine calendar | 6310 – 6311 |
| Chinese calendar | 辛巳年十一月廿四日 (3438/3498-11-24) — to —
壬午年十二月初三日(3439/3499-12-3) |
| Coptic calendar | 518 – 519 |
| Ethiopian calendar | 794 – 795 |
| Hebrew calendar | 4562 – 4563 |
| Hindu calendars | |
| - Bikram Samwat | 858 – 859 |
| - Shaka Samvat | 724 – 725 |
| - Kali Yuga | 3903 – 3904 |
| Holocene calendar | 10802 |
| Iranian calendar | 180 – 181 |
| Islamic calendar | 185 – 187 |
| Japanese calendar | |
| Korean calendar | 3135 |
| Thai solar calendar | 1345 |