| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1331 by topic | |
| Leaders | |
| Political entities - State leaders - Religious leaders | |
| Birth and death categories | |
| Births - Deaths | |
| Establishments and disestablishments categories | |
| Establishments - Disestablishments | |
| Art and literature | |
| 1331 in poetry | |
| Gregorian calendar | 1331 MCCCXXXI |
| Ab urbe condita | 2084 |
| Armenian calendar | 780 ԹՎ ՉՁ |
| Assyrian calendar | 6081 |
| Bengali calendar | 738 |
| Berber calendar | 2281 |
| English Regnal year | 4 Edw. 3 – 5 Edw. 3 |
| Buddhist calendar | 1875 |
| Burmese calendar | 693 |
| Byzantine calendar | 6839–6840 |
| Chinese calendar |
庚午年 (Metal Horse) 4027 or 3967 — to — 辛未年 (Metal Goat) 4028 or 3968 |
| Coptic calendar | 1047–1048 |
| Discordian calendar | 2497 |
| Ethiopian calendar | 1323–1324 |
| Hebrew calendar | 5091–5092 |
| Hindu calendars | |
| - Vikram Samvat | 1387–1388 |
| - Shaka Samvat | 1252–1253 |
| - Kali Yuga | 4431–4432 |
| Holocene calendar | 11331 |
| Igbo calendar | 331–332 |
| Iranian calendar | 709–710 |
| Islamic calendar | 731–732 |
| Japanese calendar |
Gentoku 3 / Genkō 1 (元弘元年) |
| Javanese calendar | 1243–1244 |
| Julian calendar | 1331 MCCCXXXI |
| Korean calendar | 3664 |
| Minguo calendar | 581 before ROC 民前581年 |
| Nanakshahi calendar | −137 |
| Thai solar calendar | 1873–1874 |
Year 1331 (MCCCXXXI) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar.