| Centuries: | 3rd century · 4th century · 5th century |
| Decades: | 350s 360s 370s 380s 390s 400s 410s |
| Years: | 378 379 380 381 382 383 384 |
| 381 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 381 CCCLXXXI |
| Ab urbe condita | 1134 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1463 – -1462 |
| Bengali calendar | -212 |
| Berber calendar | 1331 |
| Buddhist calendar | 925 |
| Burmese calendar | -257 |
| Byzantine calendar | 5889 – 5890 |
| Chinese calendar | 庚辰年十一月二十日 (3017/3077-11-20) — to —
辛巳年十一月廿九日(3018/3078-11-29) |
| Coptic calendar | 97 – 98 |
| Ethiopian calendar | 373 – 374 |
| Hebrew calendar | 4141 – 4142 |
| Hindu calendars | |
| - Bikram Samwat | 437 – 438 |
| - Shaka Samvat | 303 – 304 |
| - Kali Yuga | 3482 – 3483 |
| Holocene calendar | 10381 |
| Iranian calendar | 241 BP – 240 BP |
| Islamic calendar | 248 BH – 247 BH |
| Japanese calendar | |
| Korean calendar | 2714 |
| Thai solar calendar | 924 |