1850s
| Centuries: 18th century - 19th century - 20th century | |
| Decades: 1820s 1830s 1840s - 1850s - 1860s 1870s 1880s | |
| Years: 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 | |
- Crimean war (1854 - 1856) fought between Imperial Russia and an alliance consisting of the United Kingdom, the Second French Empire, the Kingdom of Sardinia and the Ottoman Empire. The majority of the conflict takes place around Crimea, on the northern coasts of the Black Sea.
- Emperor Franz Josef (Austria-Hungary)
- Emperor Napoleon III (France)
- Pope Pius IX
- Emperor Nicholas I (Russia)
- Emperor Alexander II (Russia)
- Queen Victoria, (United Kingdom)
- Prime Minister Lord John Russell (United Kingdom)
- Prime Minister |Lord Aberdeen (United Kingdom)
- Prime Minister Lord Palmerston (United Kingdom)
- President Millard Fillmore (United States)
- President Franklin Pierce (United States)
- President James Buchanan (United States)