| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| Gregorian calendar | 826 DCCCXXVI |
| Ab urbe condita | 1579 |
| Armenian calendar | 275 ԹՎ ՄՀԵ |
| Assyrian calendar | 5576 |
| Bengali calendar | 233 |
| Berber calendar | 1776 |
| Buddhist calendar | 1370 |
| Burmese calendar | 188 |
| Byzantine calendar | 6334–6335 |
| Chinese calendar |
乙巳年 (Wood Snake) 3522 or 3462 — to — 丙午年 (Fire Horse) 3523 or 3463 |
| Coptic calendar | 542–543 |
| Discordian calendar | 1992 |
| Ethiopian calendar | 818–819 |
| Hebrew calendar | 4586–4587 |
| Hindu calendars | |
| - Vikram Samvat | 882–883 |
| - Shaka Samvat | 747–748 |
| - Kali Yuga | 3926–3927 |
| Holocene calendar | 10826 |
| Iranian calendar | 204–205 |
| Islamic calendar | 210–211 |
| Japanese calendar |
Tenchō 3 (天長3年) |
| Javanese calendar | 722–723 |
| Julian calendar | 826 DCCCXXVI |
| Korean calendar | 3159 |
| Minguo calendar | 1086 before ROC 民前1086年 |
| Nanakshahi calendar | −642 |
| Seleucid era | 1137/1138 AG |
| Thai solar calendar | 1368–1369 |
Year 826 (DCCCXXVI) was a common year starting on Monday (link will display the full calendar) of the Julian calendar.