| Millennium: | 2nd Millennium BC |
|---|---|
| Centuries: | 20th cent. BC – 19th cent. BC – 18th cent. BC |
| Decades: | 1840s BC 1830s BC 1820s BC – 1810s BC – 1800s BC 1790s BC 1780s BC |
| Years: | 1822 BC 1821 BC 1820 BC – 1819 BC – 1818 BC 1817 BC 1816 BC |
| Gregorian calendar | 1819 MDCCCXIX |
| Ab urbe condita | 2572 |
| Armenian calendar | 1268 ԹՎ ՌՄԿԸ |
| Assyrian calendar | 6569 |
| Bengali calendar | 1226 |
| Berber calendar | 2769 |
| British Regnal year | 59 Geo. 3 – 60 Geo. 3 |
| Buddhist calendar | 2363 |
| Burmese calendar | 1181 |
| Byzantine calendar | 7327–7328 |
| Chinese calendar | 戊寅年 (Earth Tiger) 4515 or 4455 — to — 己卯年 (Earth Rabbit) 4516 or 4456 |
| Coptic calendar | 1535–1536 |
| Discordian calendar | 2985 |
| Ethiopian calendar | 1811–1812 |
| Hebrew calendar | 5579–5580 |
| Hindu calendars | |
| - Vikram Samvat | 1875–1876 |
| - Shaka Samvat | 1740–1741 |
| - Kali Yuga | 4919–4920 |
| Holocene calendar | 11819 |
| Igbo calendar | 819–820 |
| Iranian calendar | 1197–1198 |
| Islamic calendar | 1234–1235 |
| Japanese calendar | Bunsei 2 (文政２年) |
| Javanese calendar | 1746–1747 |
| Julian calendar | Gregorian minus 12 days |
| Korean calendar | 4152 |
| Minguo calendar | 93 before ROC 民前93年 |
| Nanakshahi calendar | 351 |
| Thai solar calendar | 2361–2362 |
The year 1819 BC