1566
| Years | 
|---|
| Millennium | 
| 2nd millennium | 
| Centuries | 
| Decades | 
| Years | 
| 1566 by topic | 
|---|
| Arts and science | 
| Leaders | 
| 
 | 
| Birth and death categories | 
| Births – Deaths | 
| Establishments and disestablishments categories | 
| Establishments – Disestablishments | 
| Works category | 
| 
 | 
| Gregorian calendar | 1566 MDLXVI | 
| Ab urbe condita | 2319 | 
| Armenian calendar | 1015 ԹՎ ՌԺԵ | 
| Assyrian calendar | 6316 | 
| Balinese saka calendar | 1487–1488 | 
| Bengali calendar | 972–973 | 
| Berber calendar | 2516 | 
| English Regnal year | 8 Eliz. 1 – 9 Eliz. 1 | 
| Buddhist calendar | 2110 | 
| Burmese calendar | 928 | 
| Byzantine calendar | 7074–7075 | 
| Chinese calendar | 乙丑年 (Wood Ox) 4263 or 4056 — to — 丙寅年 (Fire Tiger) 4264 or 4057 | 
| Coptic calendar | 1282–1283 | 
| Discordian calendar | 2732 | 
| Ethiopian calendar | 1558–1559 | 
| Hebrew calendar | 5326–5327 | 
| Hindu calendars | |
| - Vikram Samvat | 1622–1623 | 
| - Shaka Samvat | 1487–1488 | 
| - Kali Yuga | 4666–4667 | 
| Holocene calendar | 11566 | 
| Igbo calendar | 566–567 | 
| Iranian calendar | 944–945 | 
| Islamic calendar | 973–974 | 
| Japanese calendar | Eiroku 9 (永禄9年) | 
| Javanese calendar | 1485–1486 | 
| Julian calendar | 1566 MDLXVI | 
| Korean calendar | 3899 | 
| Minguo calendar | 346 before ROC 民前346年 | 
| Nanakshahi calendar | 98 | 
| Thai solar calendar | 2108–2109 | 
| Tibetan calendar | 阴木牛年 (female Wood-Ox) 1692 or 1311 or 539 — to — 阳火虎年 (male Fire-Tiger) 1693 or 1312 or 540 | 
Year 1566 (MDLXVI) was a common year starting on Tuesday of the Julian calendar.