| Millennium: | 1st millennium |
|---|---|
| Centuries: | 3rd century – 4th century – 5th century |
| Decades: | 350s 360s 370s – 380s – 390s 400s 410s |
| Years: | 380 381 382 – 383 – 384 385 386 |
| Gregorian calendar | 383 CCCLXXXIII |
| Ab urbe condita | 1136 |
| Assyrian calendar | 5133 |
| Balinese saka calendar | 304–305 |
| Bengali calendar | −210 |
| Berber calendar | 1333 |
| Buddhist calendar | 927 |
| Burmese calendar | −255 |
| Byzantine calendar | 5891–5892 |
| Chinese calendar | 壬午年 (Water Horse) 3079 or 3019 — to — 癸未年 (Water Goat) 3080 or 3020 |
| Coptic calendar | 99–100 |
| Discordian calendar | 1549 |
| Ethiopian calendar | 375–376 |
| Hebrew calendar | 4143–4144 |
| Hindu calendars | |
| - Vikram Samvat | 439–440 |
| - Shaka Samvat | 304–305 |
| - Kali Yuga | 3483–3484 |
| Holocene calendar | 10383 |
| Iranian calendar | 239 BP – 238 BP |
| Islamic calendar | 246 BH – 245 BH |
| Javanese calendar | 266–267 |
| Julian calendar | 383 CCCLXXXIII |
| Korean calendar | 2716 |
| Minguo calendar | 1529 before ROC 民前1529年 |
| Nanakshahi calendar | −1085 |
| Seleucid era | 694/695 AG |
| Thai solar calendar | 925–926 |
| Tibetan calendar | 阳水马年 (male Water-Horse) 509 or 128 or −644 — to — 阴水羊年 (female Water-Goat) 510 or 129 or −643 |
383 (CCCLXXXIII) was a common year starting on Sunday of the Julian calendar, the 383rd year of the Common Era (CE) and Anno Domini (AD) designations, the 383rd year of the 1st millennium, the 83rd year of the 4th century, and the 4th year of the 380s decade. As of the start of 383, the Gregorian calendar was 1 day ahead of the Julian calendar, which was the dominant calendar of the time.