1277
| Years | 
|---|
| Millennium | 
| 2nd millennium | 
| Centuries | 
| Decades | 
| Years | 
| 1277 by topic | 
|---|
| Leaders | 
  | 
| Birth and death categories | 
| Births – Deaths | 
| Establishments and disestablishments categories | 
| Establishments – Disestablishments | 
| Art and literature | 
| 1277 in poetry | 
| Gregorian calendar | 1277 MCCLXXVII  | 
| Ab urbe condita | 2030 | 
| Armenian calendar | 726 ԹՎ ՉԻԶ  | 
| Assyrian calendar | 6027 | 
| Balinese saka calendar | 1198–1199 | 
| Bengali calendar | 683–684 | 
| Berber calendar | 2227 | 
| English Regnal year | 5 Edw. 1 – 6 Edw. 1 | 
| Buddhist calendar | 1821 | 
| Burmese calendar | 639 | 
| Byzantine calendar | 6785–6786 | 
| Chinese calendar | 丙子年 (Fire Rat) 3974 or 3767 — to — 丁丑年 (Fire Ox) 3975 or 3768  | 
| Coptic calendar | 993–994 | 
| Discordian calendar | 2443 | 
| Ethiopian calendar | 1269–1270 | 
| Hebrew calendar | 5037–5038 | 
| Hindu calendars | |
| - Vikram Samvat | 1333–1334 | 
| - Shaka Samvat | 1198–1199 | 
| - Kali Yuga | 4377–4378 | 
| Holocene calendar | 11277 | 
| Igbo calendar | 277–278 | 
| Iranian calendar | 655–656 | 
| Islamic calendar | 675–676 | 
| Japanese calendar | Kenji 3 (建治3年)  | 
| Javanese calendar | 1187–1188 | 
| Julian calendar | 1277 MCCLXXVII  | 
| Korean calendar | 3610 | 
| Minguo calendar | 635 before ROC 民前635年  | 
| Nanakshahi calendar | −191 | 
| Thai solar calendar | 1819–1820 | 
| Tibetan calendar | 阳火鼠年 (male Fire-Rat) 1403 or 1022 or 250 — to — 阴火牛年 (female Fire-Ox) 1404 or 1023 or 251  | 
Year 1277 (MCCLXXVII) was a common year starting on Friday of the Julian calendar.