1139
| Years | 
|---|
| Millennium | 
| 2nd millennium | 
| Centuries | 
| Decades | 
| Years | 
| 1139 by topic | 
|---|
| Leaders | 
| 
 | 
| Birth and death categories | 
| Births – Deaths | 
| Establishments and disestablishments categories | 
| Establishments – Disestablishments | 
| Art and literature | 
| 1139 in poetry | 
| Gregorian calendar | 1139 MCXXXIX | 
| Ab urbe condita | 1892 | 
| Armenian calendar | 588 ԹՎ ՇՁԸ | 
| Assyrian calendar | 5889 | 
| Balinese saka calendar | 1060–1061 | 
| Bengali calendar | 545–546 | 
| Berber calendar | 2089 | 
| English Regnal year | 4 Ste. 1 – 5 Ste. 1 | 
| Buddhist calendar | 1683 | 
| Burmese calendar | 501 | 
| Byzantine calendar | 6647–6648 | 
| Chinese calendar | 戊午年 (Earth Horse) 3836 or 3629 — to — 己未年 (Earth Goat) 3837 or 3630 | 
| Coptic calendar | 855–856 | 
| Discordian calendar | 2305 | 
| Ethiopian calendar | 1131–1132 | 
| Hebrew calendar | 4899–4900 | 
| Hindu calendars | |
| - Vikram Samvat | 1195–1196 | 
| - Shaka Samvat | 1060–1061 | 
| - Kali Yuga | 4239–4240 | 
| Holocene calendar | 11139 | 
| Igbo calendar | 139–140 | 
| Iranian calendar | 517–518 | 
| Islamic calendar | 533–534 | 
| Japanese calendar | Hōen 5 (保延5年) | 
| Javanese calendar | 1045–1046 | 
| Julian calendar | 1139 MCXXXIX | 
| Korean calendar | 3472 | 
| Minguo calendar | 773 before ROC 民前773年 | 
| Nanakshahi calendar | −329 | 
| Seleucid era | 1450/1451 AG | 
| Thai solar calendar | 1681–1682 | 
| Tibetan calendar | 阳土马年 (male Earth-Horse) 1265 or 884 or 112 — to — 阴土羊年 (female Earth-Goat) 1266 or 885 or 113 | 
Year 1139 (MCXXXIX) was a common year starting on Sunday of the Julian calendar.