| Years |
|---|
| Millennium |
| 2nd millennium |
| Centuries |
| Decades |
| Years |
| 1550 by topic |
|---|
| Arts, history, and science |
| Countries |
|
|
| Lists of leaders |
| Birth and death categories |
| Establishments and disestablishments categories |
| Works category |
| Gregorian calendar | 1550 MDL |
| Ab urbe condita | 2303 |
| Armenian calendar | 999 ԹՎ ՋՂԹ |
| Assyrian calendar | 6300 |
| Balinese saka calendar | 1471–1472 |
| Bengali calendar | 957 |
| Berber calendar | 2500 |
| English Regnal year | 3 Edw. 6 – 4 Edw. 6 |
| Buddhist calendar | 2094 |
| Burmese calendar | 912 |
| Byzantine calendar | 7058–7059 |
| Chinese calendar | 己酉年 (Earth Rooster) 4246 or 4186 — to — 庚戌年 (Metal Dog) 4247 or 4187 |
| Coptic calendar | 1266–1267 |
| Discordian calendar | 2716 |
| Ethiopian calendar | 1542–1543 |
| Hebrew calendar | 5310–5311 |
| Hindu calendars | |
| - Vikram Samvat | 1606–1607 |
| - Shaka Samvat | 1471–1472 |
| - Kali Yuga | 4650–4651 |
| Holocene calendar | 11550 |
| Igbo calendar | 550–551 |
| Iranian calendar | 928–929 |
| Islamic calendar | 956–957 |
| Japanese calendar | Tenbun 19 (天文１９年) |
| Javanese calendar | 1468–1469 |
| Julian calendar | 1550 MDL |
| Korean calendar | 3883 |
| Minguo calendar | 362 before ROC 民前362年 |
| Nanakshahi calendar | 82 |
| Thai solar calendar | 2092–2093 |
| Tibetan calendar | ས་མོ་བྱ་ལོ་ (female Earth-Bird) 1676 or 1295 or 523 — to — ལྕགས་ཕོ་ཁྱི་ལོ་ (male Iron-Dog) 1677 or 1296 or 524 |
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1550 (MDL) was a common year starting on Wednesday in the Julian calendar.