| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1099 by topic |
|---|
| Leaders |
| Birth and death categories |
| Births – Deaths |
| Establishments and disestablishments categories |
| Establishments – Disestablishments |
| Gregorian calendar | 1099 MXCIX |
| Ab urbe condita | 1852 |
| Armenian calendar | 548 ԹՎ ՇԽԸ |
| Assyrian calendar | 5849 |
| Balinese saka calendar | 1020–1021 |
| Bengali calendar | 506 |
| Berber calendar | 2049 |
| English Regnal year | 12 Will. 2 – 13 Will. 2 |
| Buddhist calendar | 1643 |
| Burmese calendar | 461 |
| Byzantine calendar | 6607–6608 |
| Chinese calendar | 戊寅年 (Earth Tiger) 3796 or 3589 — to — 己卯年 (Earth Rabbit) 3797 or 3590 |
| Coptic calendar | 815–816 |
| Discordian calendar | 2265 |
| Ethiopian calendar | 1091–1092 |
| Hebrew calendar | 4859–4860 |
| Hindu calendars | |
| - Vikram Samvat | 1155–1156 |
| - Shaka Samvat | 1020–1021 |
| - Kali Yuga | 4199–4200 |
| Holocene calendar | 11099 |
| Igbo calendar | 99–100 |
| Iranian calendar | 477–478 |
| Islamic calendar | 492–493 |
| Japanese calendar | Jōtoku 3 / Kōwa 1 (康和元年) |
| Javanese calendar | 1003–1005 |
| Julian calendar | 1099 MXCIX |
| Korean calendar | 3432 |
| Minguo calendar | 813 before ROC 民前813年 |
| Nanakshahi calendar | −369 |
| Seleucid era | 1410/1411 AG |
| Thai solar calendar | 1641–1642 |
| Tibetan calendar | 阳土虎年 (male Earth-Tiger) 1225 or 844 or 72 — to — 阴土兔年 (female Earth-Rabbit) 1226 or 845 or 73 |
Year 1099 (MXCIX) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar.