| Millennium: | 2nd millennium |
| Centuries: | 15th century – 16th century – 17th century |
| Decades: | 1520s 1530s 1540s – 1550s – 1560s 1570s 1580s |
| Years: | 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 |
| Categories: | Births – Deaths – Architecture Establishments – Disestablishments |
The 1550s decade ran from January 1, 1550, to December 31, 1559.