1261
| Years | 
|---|
| Millennium | 
| 2nd millennium | 
| Centuries | 
| Decades | 
| Years | 
| 1261 by topic | 
|---|
| Leaders | 
| 
 | 
| Birth and death categories | 
| Births – Deaths | 
| Establishments and disestablishments categories | 
| Establishments – Disestablishments | 
| Art and literature | 
| 1261 in poetry | 
| Gregorian calendar | 1261 MCCLXI | 
| Ab urbe condita | 2014 | 
| Armenian calendar | 710 ԹՎ ՉԺ | 
| Assyrian calendar | 6011 | 
| Balinese saka calendar | 1182–1183 | 
| Bengali calendar | 667–668 | 
| Berber calendar | 2211 | 
| English Regnal year | 45 Hen. 3 – 46 Hen. 3 | 
| Buddhist calendar | 1805 | 
| Burmese calendar | 623 | 
| Byzantine calendar | 6769–6770 | 
| Chinese calendar | 庚申年 (Metal Monkey) 3958 or 3751 — to — 辛酉年 (Metal Rooster) 3959 or 3752 | 
| Coptic calendar | 977–978 | 
| Discordian calendar | 2427 | 
| Ethiopian calendar | 1253–1254 | 
| Hebrew calendar | 5021–5022 | 
| Hindu calendars | |
| - Vikram Samvat | 1317–1318 | 
| - Shaka Samvat | 1182–1183 | 
| - Kali Yuga | 4361–4362 | 
| Holocene calendar | 11261 | 
| Igbo calendar | 261–262 | 
| Iranian calendar | 639–640 | 
| Islamic calendar | 659–660 | 
| Japanese calendar | Bun'ō 2 / Kōchō 1 (弘長元年) | 
| Javanese calendar | 1170–1171 | 
| Julian calendar | 1261 MCCLXI | 
| Korean calendar | 3594 | 
| Minguo calendar | 651 before ROC 民前651年 | 
| Nanakshahi calendar | −207 | 
| Thai solar calendar | 1803–1804 | 
| Tibetan calendar | 阳金猴年 (male Iron-Monkey) 1387 or 1006 or 234 — to — 阴金鸡年 (female Iron-Rooster) 1388 or 1007 or 235 | 
Year 1261 (MCCLXI) was a common year starting on Saturday of the Julian calendar.