Back 1891 Abkhazian 1891 Afrikaans 1891 ALS 1891 እ.ኤ.አ. Amharic 1891 AN 1891 Arabic 1891 ARY 1891 ARZ 1891 AST 1891 AVK
| Millennium: | 2nd millennium |
|---|---|
| Centuries: | 18th century – 19th century – 20th century |
| Decades: | 1860s 1870s 1880s – 1890s – 1900s 1910s 1920s |
| Years: | 1888 1889 1890 – 1891 – 1892 1893 1894 |
| Gregorian calendar | 1891 MDCCCXCI |
| Ab urbe condita | 2644 |
| Armenian calendar | 1340 ԹՎ ՌՅԽ |
| Assyrian calendar | 6641 |
| Bahá'í calendar | 47–48 |
| Balinese saka calendar | 1812–1813 |
| Bengali calendar | 1298 |
| Berber calendar | 2841 |
| British Regnal year | 54 Vict. 1 – 55 Vict. 1 |
| Buddhist calendar | 2435 |
| Burmese calendar | 1253 |
| Byzantine calendar | 7399–7400 |
| Chinese calendar | 庚寅年 (Metal Tiger) 4587 or 4527 — to — 辛卯年 (Metal Rabbit) 4588 or 4528 |
| Coptic calendar | 1607–1608 |
| Discordian calendar | 3057 |
| Ethiopian calendar | 1883–1884 |
| Hebrew calendar | 5651–5652 |
| Hindu calendars | |
| - Vikram Samvat | 1947–1948 |
| - Shaka Samvat | 1812–1813 |
| - Kali Yuga | 4991–4992 |
| Holocene calendar | 11891 |
| Igbo calendar | 891–892 |
| Iranian calendar | 1269–1270 |
| Islamic calendar | 1308–1309 |
| Japanese calendar | Meiji 24 (明治２４年) |
| Javanese calendar | 1820–1821 |
| Julian calendar | Gregorian minus 12 days |
| Korean calendar | 4224 |
| Minguo calendar | 21 before ROC 民前21年 |
| Nanakshahi calendar | 423 |
| Thai solar calendar | 2433–2434 |
| Tibetan calendar | 阳金虎年 (male Iron-Tiger) 2017 or 1636 or 864 — to — 阴金兔年 (female Iron-Rabbit) 2018 or 1637 or 865 |
1891 (MDCCCXCI) was a common year starting on Thursday of the Gregorian calendar and a common year starting on Tuesday of the Julian calendar, the 1891st year of the Common Era (CE) and Anno Domini (AD) designations, the 891st year of the 2nd millennium, the 91st year of the 19th century, and the 2nd year of the 1890s decade. As of the start of 1891, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.