| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| Gregorian calendar | 884 DCCCLXXXIV |
| Ab urbe condita | 1637 |
| Armenian calendar | 333 ԹՎ ՅԼԳ |
| Assyrian calendar | 5634 |
| Bengali calendar | 291 |
| Berber calendar | 1834 |
| Buddhist calendar | 1428 |
| Burmese calendar | 246 |
| Byzantine calendar | 6392–6393 |
| Chinese calendar |
癸卯年 (Water Rabbit) 3580 or 3520 — to — 甲辰年 (Wood Dragon) 3581 or 3521 |
| Coptic calendar | 600–601 |
| Discordian calendar | 2050 |
| Ethiopian calendar | 876–877 |
| Hebrew calendar | 4644–4645 |
| Hindu calendars | |
| - Vikram Samvat | 940–941 |
| - Shaka Samvat | 805–806 |
| - Kali Yuga | 3984–3985 |
| Holocene calendar | 10884 |
| Iranian calendar | 262–263 |
| Islamic calendar | 270–271 |
| Japanese calendar |
Gangyō 8 (元慶8年) |
| Javanese calendar | 782–783 |
| Julian calendar | 884 DCCCLXXXIV |
| Korean calendar | 3217 |
| Minguo calendar | 1028 before ROC 民前1028年 |
| Nanakshahi calendar | −584 |
| Seleucid era | 1195/1196 AG |
| Thai solar calendar | 1426–1427 |
Year 884 (DCCCLXXXIV) was a leap year starting on Wednesday (link will display the full calendar) of the Julian calendar.