| Centuries: | 7th century - 8th century - 9th century |
| Decades: | 750s 760s 770s - 780s - 790s 800s 810s |
| Years: | 782 783 784 - 785 - 786 787 788 |
| 785 by topic | |
| Politics | |
| State leaders - Sovereign states | |
| Birth and death categories | |
| Births - Deaths | |
| Establishment and disestablishment categories | |
| Establishments - Disestablishments | |
| Gregorian calendar | 785 DCCLXXXV |
| Ab urbe condita | 1538 |
| Armenian calendar | 234 ԹՎ ՄԼԴ |
| Bahá'í calendar | -1059 – -1058 |
| Berber calendar | 1735 |
| Buddhist calendar | 1329 |
| Burmese calendar | 147 |
| Chinese calendar | 3421/3481-11-16 (甲子年十一月十六日) — to —
3422/3482-11-25(乙丑年十一月廿五日) |
| Coptic calendar | 501 – 502 |
| Ethiopian calendar | 777 – 778 |
| Hebrew calendar | 4545 – 4546 |
| Hindu calendars | |
| - Vikram Samvat | 840 – 841 |
| - Shaka Samvat | 707 – 708 |
| - Kali Yuga | 3886 – 3887 |
| Holocene calendar | 10785 |
| Iranian calendar | 163 – 164 |
| Islamic calendar | 168 – 169 |
| Japanese calendar | |
| Korean calendar | 3118 |
| Thai solar calendar | 1328 |