| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1100 by topic | |
| Lists of leaders | |
| Political entities - State leaders - Religious leaders | |
| Birth and death categories | |
| Births – Deaths | |
| Establishments and disestablishments categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 1100 MC |
| Ab urbe condita | 1853 |
| Armenian calendar | 549 ԹՎ ՇԽԹ |
| Assyrian calendar | 5850 |
| Bengali calendar | 507 |
| Berber calendar | 2050 |
| English Regnal year | 13 Will. 2 – 1 Hen. 1 |
| Buddhist calendar | 1644 |
| Burmese calendar | 462 |
| Byzantine calendar | 6608–6609 |
| Chinese calendar |
己卯年 (Earth Rabbit) 3796 or 3736 — to — 庚辰年 (Metal Dragon) 3797 or 3737 |
| Coptic calendar | 816–817 |
| Discordian calendar | 2266 |
| Ethiopian calendar | 1092–1093 |
| Hebrew calendar | 4860–4861 |
| Hindu calendars | |
| - Vikram Samvat | 1156–1157 |
| - Shaka Samvat | 1021–1022 |
| - Kali Yuga | 4200–4201 |
| Holocene calendar | 11100 |
| Igbo calendar | 100–101 |
| Iranian calendar | 478–479 |
| Islamic calendar | 493–494 |
| Japanese calendar |
Kōwa 2 (康和2年) |
| Javanese calendar | 1005–1006 |
| Julian calendar | 1100 MC |
| Korean calendar | 3433 |
| Minguo calendar | 812 before ROC 民前812年 |
| Nanakshahi calendar | −368 |
| Seleucid era | 1411/1412 AG |
| Thai solar calendar | 1642–1643 |
Year 1100 (MC) was a leap year starting on Sunday (link will display the full calendar) of the Julian calendar.