| Years |
|---|
| Millennium |
| 2nd millennium |
| Centuries |
| Decades |
| Years |
| 1660 by topic |
|---|
| Arts, history, and science |
| Countries |
|
|
| Lists of leaders |
| Birth and death categories |
| Establishments and disestablishments categories |
| Works category |
| Gregorian calendar | 1660 MDCLX |
| Ab urbe condita | 2413 |
| Armenian calendar | 1109 ԹՎ ՌՃԹ |
| Assyrian calendar | 6410 |
| Balinese saka calendar | 1581–1582 |
| Bengali calendar | 1067 |
| Berber calendar | 2610 |
| English Regnal year | 11 Cha. 2 – 12 Cha. 2 |
| Buddhist calendar | 2204 |
| Burmese calendar | 1022 |
| Byzantine calendar | 7168–7169 |
| Chinese calendar | 己亥年 (Earth Pig) 4356 or 4296 — to — 庚子年 (Metal Rat) 4357 or 4297 |
| Coptic calendar | 1376–1377 |
| Discordian calendar | 2826 |
| Ethiopian calendar | 1652–1653 |
| Hebrew calendar | 5420–5421 |
| Hindu calendars | |
| - Vikram Samvat | 1716–1717 |
| - Shaka Samvat | 1581–1582 |
| - Kali Yuga | 4760–4761 |
| Holocene calendar | 11660 |
| Igbo calendar | 660–661 |
| Iranian calendar | 1038–1039 |
| Islamic calendar | 1070–1071 |
| Japanese calendar | Manji 3 (万治3年) |
| Javanese calendar | 1582–1583 |
| Julian calendar | Gregorian minus 10 days |
| Korean calendar | 3993 |
| Minguo calendar | 252 before ROC 民前252年 |
| Nanakshahi calendar | 192 |
| Thai solar calendar | 2202–2203 |
| Tibetan calendar | ས་མོ་ཕག་ལོ་ (female Earth-Boar) 1786 or 1405 or 633 — to — ལྕགས་ཕོ་བྱི་བ་ལོ་ (male Iron-Rat) 1787 or 1406 or 634 |
1660 (MDCLX) was a leap year starting on Thursday in the Gregorian calendar and a leap year starting on Sunday in the Julian calendar.