1377
| Years | 
|---|
| Millennium | 
| 2nd millennium | 
| Centuries | 
| Decades | 
| Years | 
| 1377 by topic | 
|---|
| Leaders | 
| 
 | 
| Birth and death categories | 
| Births – Deaths | 
| Establishments and disestablishments categories | 
| Establishments – Disestablishments | 
| Art and literature | 
| 1377 in poetry | 
| Gregorian calendar | 1377 MCCCLXXVII | 
| Ab urbe condita | 2130 | 
| Armenian calendar | 826 ԹՎ ՊԻԶ | 
| Assyrian calendar | 6127 | 
| Balinese saka calendar | 1298–1299 | 
| Bengali calendar | 783–784 | 
| Berber calendar | 2327 | 
| English Regnal year | 50 Edw. 3 – 1 Ric. 2 | 
| Buddhist calendar | 1921 | 
| Burmese calendar | 739 | 
| Byzantine calendar | 6885–6886 | 
| Chinese calendar | 丙辰年 (Fire Dragon) 4074 or 3867 — to — 丁巳年 (Fire Snake) 4075 or 3868 | 
| Coptic calendar | 1093–1094 | 
| Discordian calendar | 2543 | 
| Ethiopian calendar | 1369–1370 | 
| Hebrew calendar | 5137–5138 | 
| Hindu calendars | |
| - Vikram Samvat | 1433–1434 | 
| - Shaka Samvat | 1298–1299 | 
| - Kali Yuga | 4477–4478 | 
| Holocene calendar | 11377 | 
| Igbo calendar | 377–378 | 
| Iranian calendar | 755–756 | 
| Islamic calendar | 778–779 | 
| Japanese calendar | Eiwa 3 (永和3年) | 
| Javanese calendar | 1290–1291 | 
| Julian calendar | 1377 MCCCLXXVII | 
| Korean calendar | 3710 | 
| Minguo calendar | 535 before ROC 民前535年 | 
| Nanakshahi calendar | −91 | 
| Thai solar calendar | 1919–1920 | 
| Tibetan calendar | 阳火龙年 (male Fire-Dragon) 1503 or 1122 or 350 — to — 阴火蛇年 (female Fire-Snake) 1504 or 1123 or 351 | 
Year 1377 (MCCCLXXVII) was a common year starting on Thursday of the Julian calendar.