1156
| Years | 
|---|
| Millennium | 
| 2nd millennium | 
| Centuries | 
| Decades | 
| Years | 
| 1156 by topic | 
|---|
| Leaders | 
| 
 | 
| Birth and death categories | 
| Births – Deaths | 
| Establishments and disestablishments categories | 
| Establishments – Disestablishments | 
| Art and literature | 
| 1156 in poetry | 
| Gregorian calendar | 1156 MCLVI | 
| Ab urbe condita | 1909 | 
| Armenian calendar | 605 ԹՎ ՈԵ | 
| Assyrian calendar | 5906 | 
| Balinese saka calendar | 1077–1078 | 
| Bengali calendar | 562–563 | 
| Berber calendar | 2106 | 
| English Regnal year | 2 Hen. 2 – 3 Hen. 2 | 
| Buddhist calendar | 1700 | 
| Burmese calendar | 518 | 
| Byzantine calendar | 6664–6665 | 
| Chinese calendar | 乙亥年 (Wood Pig) 3853 or 3646 — to — 丙子年 (Fire Rat) 3854 or 3647 | 
| Coptic calendar | 872–873 | 
| Discordian calendar | 2322 | 
| Ethiopian calendar | 1148–1149 | 
| Hebrew calendar | 4916–4917 | 
| Hindu calendars | |
| - Vikram Samvat | 1212–1213 | 
| - Shaka Samvat | 1077–1078 | 
| - Kali Yuga | 4256–4257 | 
| Holocene calendar | 11156 | 
| Igbo calendar | 156–157 | 
| Iranian calendar | 534–535 | 
| Islamic calendar | 550–551 | 
| Japanese calendar | Kyūju 3 / Hōgen 1 (保元元年) | 
| Javanese calendar | 1062–1063 | 
| Julian calendar | 1156 MCLVI | 
| Korean calendar | 3489 | 
| Minguo calendar | 756 before ROC 民前756年 | 
| Nanakshahi calendar | −312 | 
| Seleucid era | 1467/1468 AG | 
| Thai solar calendar | 1698–1699 | 
| Tibetan calendar | 阴木猪年 (female Wood-Pig) 1282 or 901 or 129 — to — 阳火鼠年 (male Fire-Rat) 1283 or 902 or 130 | 
Year 1156 (MCLVI) was a leap year starting on Sunday of the Julian calendar.