AD 1811
| Millennium: | 2nd millennium |
|---|---|
| Centuries: | 18th century – 19th century – 20th century |
| Decades: | 1780s 1790s 1800s – 1810s – 1820s 1830s 1840s |
| Years: | 1808 1809 1810 – 1811 – 1812 1813 1814 |
| Gregorian calendar | 1811 MDCCCXI |
| Ab urbe condita | 2564 |
| Armenian calendar | 1260 ԹՎ ՌՄԿ |
| Assyrian calendar | 6561 |
| Balinese saka calendar | 1732–1733 |
| Bengali calendar | 1218 |
| Berber calendar | 2761 |
| British Regnal year | 51 Geo. 3 – 52 Geo. 3 |
| Buddhist calendar | 2355 |
| Burmese calendar | 1173 |
| Byzantine calendar | 7319–7320 |
| Chinese calendar | 庚午年 (Metal Horse) 4507 or 4447 — to — 辛未年 (Metal Goat) 4508 or 4448 |
| Coptic calendar | 1527–1528 |
| Discordian calendar | 2977 |
| Ethiopian calendar | 1803–1804 |
| Hebrew calendar | 5571–5572 |
| Hindu calendars | |
| - Vikram Samvat | 1867–1868 |
| - Shaka Samvat | 1732–1733 |
| - Kali Yuga | 4911–4912 |
| Holocene calendar | 11811 |
| Igbo calendar | 811–812 |
| Iranian calendar | 1189–1190 |
| Islamic calendar | 1225–1226 |
| Japanese calendar | Bunka 8 (文化８年) |
| Javanese calendar | 1737–1738 |
| Julian calendar | Gregorian minus 12 days |
| Korean calendar | 4144 |
| Minguo calendar | 101 before ROC 民前101年 |
| Nanakshahi calendar | 343 |
| Thai solar calendar | 2353–2354 |
| Tibetan calendar | 阳金马年 (male Iron-Horse) 1937 or 1556 or 784 — to — 阴金羊年 (female Iron-Goat) 1938 or 1557 or 785 |
1811 (MDCCCXI) was a common year starting on Tuesday in the Gregorian calendar and a common year starting on Sunday in the Julian calendar.
Births
- March 4 - Sir John Lawrence, British Indian administrator
- October 22 – Franz Liszt, Hungarian composer