| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 864 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 864 DCCCLXIV |
| Ab urbe condita | 1617 |
| Armenian calendar | 313 ԹՎ ՅԺԳ |
| Assyrian calendar | 5614 |
| Balinese saka calendar | 785–786 |
| Bengali calendar | 271 |
| Berber calendar | 1814 |
| Buddhist calendar | 1408 |
| Burmese calendar | 226 |
| Byzantine calendar | 6372–6373 |
| Chinese calendar | 癸未年 (Water Goat) 3561 or 3354 — to — 甲申年 (Wood Monkey) 3562 or 3355 |
| Coptic calendar | 580–581 |
| Discordian calendar | 2030 |
| Ethiopian calendar | 856–857 |
| Hebrew calendar | 4624–4625 |
| Hindu calendars | |
| - Vikram Samvat | 920–921 |
| - Shaka Samvat | 785–786 |
| - Kali Yuga | 3964–3965 |
| Holocene calendar | 10864 |
| Iranian calendar | 242–243 |
| Islamic calendar | 249–250 |
| Japanese calendar | Jōgan 6 (貞観６年) |
| Javanese calendar | 761–762 |
| Julian calendar | 864 DCCCLXIV |
| Korean calendar | 3197 |
| Minguo calendar | 1048 before ROC 民前1048年 |
| Nanakshahi calendar | −604 |
| Seleucid era | 1175/1176 AG |
| Thai solar calendar | 1406–1407 |
| Tibetan calendar | 阴水羊年 (female Water-Goat) 990 or 609 or −163 — to — 阳木猴年 (male Wood-Monkey) 991 or 610 or −162 |
Year 864 (DCCCLXIV) was a leap year starting on Saturday (link will display the full calendar) of the Julian calendar.