| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| Gregorian calendar | 827 DCCCXXVII |
| Ab urbe condita | 1580 |
| Armenian calendar | 276 ԹՎ ՄՀԶ |
| Assyrian calendar | 5577 |
| Bengali calendar | 234 |
| Berber calendar | 1777 |
| Buddhist calendar | 1371 |
| Burmese calendar | 189 |
| Byzantine calendar | 6335–6336 |
| Chinese calendar |
丙午年 (Fire Horse) 3523 or 3463 — to — 丁未年 (Fire Goat) 3524 or 3464 |
| Coptic calendar | 543–544 |
| Discordian calendar | 1993 |
| Ethiopian calendar | 819–820 |
| Hebrew calendar | 4587–4588 |
| Hindu calendars | |
| - Vikram Samvat | 883–884 |
| - Shaka Samvat | 748–749 |
| - Kali Yuga | 3927–3928 |
| Holocene calendar | 10827 |
| Iranian calendar | 205–206 |
| Islamic calendar | 211–212 |
| Japanese calendar |
Tenchō 4 (天長4年) |
| Javanese calendar | 723–724 |
| Julian calendar | 827 DCCCXXVII |
| Korean calendar | 3160 |
| Minguo calendar | 1085 before ROC 民前1085年 |
| Nanakshahi calendar | −641 |
| Seleucid era | 1138/1139 AG |
| Thai solar calendar | 1369–1370 |
Year 827 (DCCCXXVII) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar.