| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 859 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 859 DCCCLIX |
| Ab urbe condita | 1612 |
| Armenian calendar | 308 ԹՎ ՅԸ |
| Assyrian calendar | 5609 |
| Balinese saka calendar | 780–781 |
| Bengali calendar | 266 |
| Berber calendar | 1809 |
| Buddhist calendar | 1403 |
| Burmese calendar | 221 |
| Byzantine calendar | 6367–6368 |
| Chinese calendar | 戊寅年 (Earth Tiger) 3556 or 3349 — to — 己卯年 (Earth Rabbit) 3557 or 3350 |
| Coptic calendar | 575–576 |
| Discordian calendar | 2025 |
| Ethiopian calendar | 851–852 |
| Hebrew calendar | 4619–4620 |
| Hindu calendars | |
| - Vikram Samvat | 915–916 |
| - Shaka Samvat | 780–781 |
| - Kali Yuga | 3959–3960 |
| Holocene calendar | 10859 |
| Iranian calendar | 237–238 |
| Islamic calendar | 244–245 |
| Japanese calendar | Ten'an 3 / Jōgan 1 (貞観元年) |
| Javanese calendar | 756–757 |
| Julian calendar | 859 DCCCLIX |
| Korean calendar | 3192 |
| Minguo calendar | 1053 before ROC 民前1053年 |
| Nanakshahi calendar | −609 |
| Seleucid era | 1170/1171 AG |
| Thai solar calendar | 1401–1402 |
| Tibetan calendar | 阳土虎年 (male Earth-Tiger) 985 or 604 or −168 — to — 阴土兔年 (female Earth-Rabbit) 986 or 605 or −167 |
Year 859 (DCCCLIX) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar.