| 66871 | June 11 | Death | 1796 – Samuel Whitbread, English brewer and politician, founded the Whitbread Company (b. 1720) |
| 66872 | June 11 | Death | 1847 – John Franklin, English admiral and politician (b. 1786) |
| 66873 | June 11 | Death | 1852 – Karl Bryullov, Russian painter (b. 1799) |
| 66874 | June 11 | Death | 1859 – Klemens von Metternich, German-Austrian politician, 1st State Chancellor of the Austrian Empire (b. 1773) |
| 66875 | June 11 | Death | 1879 – William, Prince of Orange (b. 1840) |
| 66876 | June 11 | Death | 1882 – Louis Désiré Maigret, French bishop (b. 1804) |
| 66877 | June 11 | Death | 1885 – Matías Ramos Mejía, Argentinian colonel (b. 1810) |
| 66878 | June 11 | Death | 1903 – Nikolai Bugaev, Russian mathematician and philosopher (b. 1837) |
| 66879 | June 11 | Death | 1903 – Alexander I of Serbia (b. 1876) |
| 66880 | June 11 | Death | 1903 – Draga Mašin, Serbian wife of Alexander I of Serbia (b. 1864) |
| 66881 | June 11 | Death | 1911 – James Curtis Hepburn, American physician and missionary (b. 1815) |
| 66882 | June 11 | Death | 1913 – Mahmud Shevket Pasha, Ottoman general and politician, 279th Grand Vizier of the Ottoman Empire (b. 1856) |
| 66883 | June 11 | Death | 1914 – Adolphus Frederick V, Grand Duke of Mecklenburg-Strelitz (b. 1848) |
| 66884 | June 11 | Death | 1920 – William F. Halsey, Sr., American captain (b. 1853) |
| 66885 | June 11 | Death | 1924 – Théodore Dubois, French organist, composer, and educator (b. 1837) |
| 66886 | June 11 | Death | 1927 – William Attewell, English cricketer (b. 1861) |
| 66887 | June 11 | Death | 1934 – Lev Vygotsky, Belarusian-Russian psychologist and theorist (b. 1896) |
| 66888 | June 11 | Death | 1936 – Robert E. Howard, American author and poet (b. 1906) |
| 66889 | June 11 | Death | 1937 – R. J. Mitchell, English engineer, designed the Supermarine Spitfire (b. 1895) |
| 66890 | June 11 | Death | 1941 – Daniel Carter Beard, American author and illustrator, founded the Boy Scouts of America (b. 1850) |
| 66891 | June 11 | Death | 1955 – Pierre Levegh, French race car driver (b. 1905) |
| 66892 | June 11 | Death | 1962 – Chhabi Biswas, Indian actor and director (b. 1900) |
| 66893 | June 11 | Death | 1963 – Thích Quảng Đức, Vietnamese monk and martyr (b. 1897) |
| 66894 | June 11 | Death | 1965 – Paul B. Coremans, Belgian chemist and academic (b. 1908) |
| 66895 | June 11 | Death | 1965 – José Mendes Cabeçadas, Portuguese admiral and politician, 9th President of Portugal (b. 1883) |
| 66896 | June 11 | Death | 1970 – Frank Laubach, American missionary and mystic (b. 1884) |
| 66897 | June 11 | Death | 1974 – Eurico Gaspar Dutra, Brazilian general and politician, 16th President of Brazil (b. 1883) |
| 66898 | June 11 | Death | 1974 – Julius Evola, Italian philosopher and author (b. 1898) |
| 66899 | June 11 | Death | 1976 – Jim Konstanty, American baseball player (b. 1917) |
| 66900 | June 11 | Death | 1979 – Alice Dalgliesh, Trinidadian-American author and publisher (b. 1893) |