1236
| Years | 
|---|
| Millennium | 
| 2nd millennium | 
| Centuries | 
| Decades | 
| Years | 
| 1236 by topic | 
|---|
| Leaders | 
| 
 | 
| Birth and death categories | 
| Births – Deaths | 
| Establishments and disestablishments categories | 
| Establishments – Disestablishments | 
| Art and literature | 
| 1236 in poetry | 
| Gregorian calendar | 1236 MCCXXXVI | 
| Ab urbe condita | 1989 | 
| Armenian calendar | 685 ԹՎ ՈՁԵ | 
| Assyrian calendar | 5986 | 
| Balinese saka calendar | 1157–1158 | 
| Bengali calendar | 642–643 | 
| Berber calendar | 2186 | 
| English Regnal year | 20 Hen. 3 – 21 Hen. 3 | 
| Buddhist calendar | 1780 | 
| Burmese calendar | 598 | 
| Byzantine calendar | 6744–6745 | 
| Chinese calendar | 乙未年 (Wood Goat) 3933 or 3726 — to — 丙申年 (Fire Monkey) 3934 or 3727 | 
| Coptic calendar | 952–953 | 
| Discordian calendar | 2402 | 
| Ethiopian calendar | 1228–1229 | 
| Hebrew calendar | 4996–4997 | 
| Hindu calendars | |
| - Vikram Samvat | 1292–1293 | 
| - Shaka Samvat | 1157–1158 | 
| - Kali Yuga | 4336–4337 | 
| Holocene calendar | 11236 | 
| Igbo calendar | 236–237 | 
| Iranian calendar | 614–615 | 
| Islamic calendar | 633–634 | 
| Japanese calendar | Katei 2 (嘉禎2年) | 
| Javanese calendar | 1145–1146 | 
| Julian calendar | 1236 MCCXXXVI | 
| Korean calendar | 3569 | 
| Minguo calendar | 676 before ROC 民前676年 | 
| Nanakshahi calendar | −232 | 
| Thai solar calendar | 1778–1779 | 
| Tibetan calendar | 阴木羊年 (female Wood-Goat) 1362 or 981 or 209 — to — 阳火猴年 (male Fire-Monkey) 1363 or 982 or 210 | 
Year 1236 (MCCXXXVI) was a leap year starting on Tuesday of the Julian calendar.