854
| Years | 
|---|
| Millennium | 
| 1st millennium | 
| Centuries | 
| Decades | 
| Years | 
| 854 by topic | 
|---|
| Leaders | 
| Categories | 
| 
 | 
| Gregorian calendar | 854 DCCCLIV | 
| Ab urbe condita | 1607 | 
| Armenian calendar | 303 ԹՎ ՅԳ | 
| Assyrian calendar | 5604 | 
| Balinese saka calendar | 775–776 | 
| Bengali calendar | 260–261 | 
| Berber calendar | 1804 | 
| Buddhist calendar | 1398 | 
| Burmese calendar | 216 | 
| Byzantine calendar | 6362–6363 | 
| Chinese calendar | 癸酉年 (Water Rooster) 3551 or 3344 — to — 甲戌年 (Wood Dog) 3552 or 3345 | 
| Coptic calendar | 570–571 | 
| Discordian calendar | 2020 | 
| Ethiopian calendar | 846–847 | 
| Hebrew calendar | 4614–4615 | 
| Hindu calendars | |
| - Vikram Samvat | 910–911 | 
| - Shaka Samvat | 775–776 | 
| - Kali Yuga | 3954–3955 | 
| Holocene calendar | 10854 | 
| Iranian calendar | 232–233 | 
| Islamic calendar | 239–240 | 
| Japanese calendar | Ninju 4 / Saikō 1 (斉衡元年) | 
| Javanese calendar | 751–752 | 
| Julian calendar | 854 DCCCLIV | 
| Korean calendar | 3187 | 
| Minguo calendar | 1058 before ROC 民前1058年 | 
| Nanakshahi calendar | −614 | 
| Seleucid era | 1165/1166 AG | 
| Thai solar calendar | 1396–1397 | 
| Tibetan calendar | 阴水鸡年 (female Water-Rooster) 980 or 599 or −173 — to — 阳木狗年 (male Wood-Dog) 981 or 600 or −172 | 
Year 854 (DCCCLIV) was a common year starting on Monday of the Julian calendar.