| Millennium: | 1st millennium |
|---|---|
| Centuries: | 7th century – 8th century – 9th century |
| Decades: | 760s 770s 780s – 790s – 800s 810s 820s |
| Years: | 796 797 798 – 799 – 800 801 802 |
| 799 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 799 DCCXCIX |
| Ab urbe condita | 1552 |
| Armenian calendar | 248 ԹՎ ՄԽԸ |
| Bahá'í calendar | -1045 – -1044 |
| Bengali calendar | 206 |
| Berber calendar | 1749 |
| Buddhist calendar | 1343 |
| Burmese calendar | 161 |
| Byzantine calendar | 6307 – 6308 |
| Chinese calendar | 戊寅年十一月廿一日 (3435/3495-11-21) — to —
己卯年十二月初一日(3436/3496-12-1) |
| Coptic calendar | 515 – 516 |
| Ethiopian calendar | 791 – 792 |
| Hebrew calendar | 4559 – 4560 |
| Hindu calendars | |
| - Bikram Samwat | 855 – 856 |
| - Shaka Samvat | 721 – 722 |
| - Kali Yuga | 3900 – 3901 |
| Holocene calendar | 10799 |
| Iranian calendar | 177 – 178 |
| Islamic calendar | 182 – 183 |
| Japanese calendar | |
| Korean calendar | 3132 |
| Thai solar calendar | 1342 |