1539
| Years | 
|---|
| Millennium | 
| 2nd millennium | 
| Centuries | 
| Decades | 
| Years | 
| 1539 by topic | 
|---|
| Arts and science | 
| Leaders | 
| 
 | 
| Birth and death categories | 
| Births – Deaths | 
| Establishments and disestablishments categories | 
| Establishments – Disestablishments | 
| Works category | 
| 
 | 
| Gregorian calendar | 1539 MDXXXIX | 
| Ab urbe condita | 2292 | 
| Armenian calendar | 988 ԹՎ ՋՁԸ | 
| Assyrian calendar | 6289 | 
| Balinese saka calendar | 1460–1461 | 
| Bengali calendar | 945–946 | 
| Berber calendar | 2489 | 
| English Regnal year | 30 Hen. 8 – 31 Hen. 8 | 
| Buddhist calendar | 2083 | 
| Burmese calendar | 901 | 
| Byzantine calendar | 7047–7048 | 
| Chinese calendar | 戊戌年 (Earth Dog) 4236 or 4029 — to — 己亥年 (Earth Pig) 4237 or 4030 | 
| Coptic calendar | 1255–1256 | 
| Discordian calendar | 2705 | 
| Ethiopian calendar | 1531–1532 | 
| Hebrew calendar | 5299–5300 | 
| Hindu calendars | |
| - Vikram Samvat | 1595–1596 | 
| - Shaka Samvat | 1460–1461 | 
| - Kali Yuga | 4639–4640 | 
| Holocene calendar | 11539 | 
| Igbo calendar | 539–540 | 
| Iranian calendar | 917–918 | 
| Islamic calendar | 945–946 | 
| Japanese calendar | Tenbun 8 (天文8年) | 
| Javanese calendar | 1457–1458 | 
| Julian calendar | 1539 MDXXXIX | 
| Korean calendar | 3872 | 
| Minguo calendar | 373 before ROC 民前373年 | 
| Nanakshahi calendar | 71 | 
| Thai solar calendar | 2081–2082 | 
| Tibetan calendar | 阳土狗年 (male Earth-Dog) 1665 or 1284 or 512 — to — 阴土猪年 (female Earth-Pig) 1666 or 1285 or 513 | 
Year 1539 (MDXXXIX) was a common year starting on Wednesday of the Julian calendar.