1239
| Years | 
|---|
| Millennium | 
| 2nd millennium | 
| Centuries | 
| Decades | 
| Years | 
| 1239 by topic | 
|---|
| Leaders | 
| 
 | 
| Birth and death categories | 
| Births – Deaths | 
| Establishments and disestablishments categories | 
| Establishments – Disestablishments | 
| Art and literature | 
| 1239 in poetry | 
| Gregorian calendar | 1239 MCCXXXIX | 
| Ab urbe condita | 1992 | 
| Armenian calendar | 688 ԹՎ ՈՁԸ | 
| Assyrian calendar | 5989 | 
| Balinese saka calendar | 1160–1161 | 
| Bengali calendar | 645–646 | 
| Berber calendar | 2189 | 
| English Regnal year | 23 Hen. 3 – 24 Hen. 3 | 
| Buddhist calendar | 1783 | 
| Burmese calendar | 601 | 
| Byzantine calendar | 6747–6748 | 
| Chinese calendar | 戊戌年 (Earth Dog) 3936 or 3729 — to — 己亥年 (Earth Pig) 3937 or 3730 | 
| Coptic calendar | 955–956 | 
| Discordian calendar | 2405 | 
| Ethiopian calendar | 1231–1232 | 
| Hebrew calendar | 4999–5000 | 
| Hindu calendars | |
| - Vikram Samvat | 1295–1296 | 
| - Shaka Samvat | 1160–1161 | 
| - Kali Yuga | 4339–4340 | 
| Holocene calendar | 11239 | 
| Igbo calendar | 239–240 | 
| Iranian calendar | 617–618 | 
| Islamic calendar | 636–637 | 
| Japanese calendar | Ryakunin 2 / En'ō 1 (延応元年) | 
| Javanese calendar | 1148–1149 | 
| Julian calendar | 1239 MCCXXXIX | 
| Korean calendar | 3572 | 
| Minguo calendar | 673 before ROC 民前673年 | 
| Nanakshahi calendar | −229 | 
| Thai solar calendar | 1781–1782 | 
| Tibetan calendar | 阳土狗年 (male Earth-Dog) 1365 or 984 or 212 — to — 阴土猪年 (female Earth-Pig) 1366 or 985 or 213 | 
Year 1239 (MCCXXXIX) was a common year starting on Saturday of the Julian calendar.