| 106771 | September 18 | Birth | 1765 – Pope Gregory XVI (d. 1846) |
| 106772 | September 18 | Birth | 1779 – Joseph Story, American lawyer, jurist, and politician (d. 1845) |
| 106773 | September 18 | Birth | 1786 – Christian VIII of Denmark (d. 1848) |
| 106774 | September 18 | Birth | 1786 – Justinus Kerner, German poet and author (d. 1862) |
| 106775 | September 18 | Birth | 1812 – Herschel Vespasian Johnson, American lawyer and politician, 41st Governor of Georgia (d. 1880) |
| 106776 | September 18 | Birth | 1819 – Léon Foucault, French physicist and academic (d. 1868) |
| 106777 | September 18 | Birth | 1837 – Aires de Ornelas e Vasconcelos, Portuguese archbishop (d. 1880) |
| 106778 | September 18 | Birth | 1838 – Anton Mauve, Dutch painter and educator (d. 1888) |
| 106779 | September 18 | Birth | 1846 – Richard With, Norwegian captain, businessman, and politician, founded Vesteraalens Dampskibsselskab (d. 1930) |
| 106780 | September 18 | Birth | 1848 – Francis Grierson, English-American pianist and composer (d. 1927) |
| 106781 | September 18 | Birth | 1852 – Clement Lindley Wragge, English-Australian meteorologist and public servant (d. 1922) |
| 106782 | September 18 | Birth | 1857 – John Hessin Clarke, American lawyer and judge (d. 1945) |
| 106783 | September 18 | Birth | 1858 – Kate Booth, English Salvation Army officer (d. 1955) |
| 106784 | September 18 | Birth | 1859 – John L. Bates, American lawyer and politician, 41st Governor of Massachusetts (d. 1946) |
| 106785 | September 18 | Birth | 1859 – Lincoln Loy McCandless, American businessman and politician (d. 1940) |
| 106786 | September 18 | Birth | 1860 – Alberto Franchetti, Italian-American composer and educator (d. 1942) |
| 106787 | September 18 | Birth | 1870 – Clark Wissler, American anthropologist, author, and educator (d. 1947) |
| 106788 | September 18 | Birth | 1872 – Carl Friedberg, German-Italian pianist and educator (d. 1955) |
| 106789 | September 18 | Birth | 1872 – Adolf Schmal, Austrian fencer and cyclist (d. 1919) |
| 106790 | September 18 | Birth | 1875 – Tomás Burgos, Chilean philanthropist (d. 1945) |
| 106791 | September 18 | Birth | 1876 – James Scullin, Australian journalist and politician, 9th Prime Minister of Australia (d. 1953) |
| 106792 | September 18 | Birth | 1878 – James O. Richardson, American admiral (d. 1974) |
| 106793 | September 18 | Birth | 1883 – Gerald Tyrwhitt-Wilson, 14th Baron Berners, English composer, painter, and author (d. 1950) |
| 106794 | September 18 | Birth | 1885 – Uzeyir Hajibeyov, Azerbaijani composer, conductor, and playwright (d. 1948) |
| 106795 | September 18 | Birth | 1888 – Grey Owl, English-Canadian environmentalist and author (d. 1938) |
| 106796 | September 18 | Birth | 1888 – Toni Wolff, Swiss psychologist and author (d. 1953) |
| 106797 | September 18 | Birth | 1889 – Doris Blackburn, Australian activist and politician (d. 1970) |
| 106798 | September 18 | Birth | 1889 – Leslie Morshead, Australian general, businessman, and educator (d. 1959) |
| 106799 | September 18 | Birth | 1891 – Rafael Pérez y Pérez, Spanish author (d. 1984) |
| 106800 | September 18 | Birth | 1893 – Arthur Benjamin, Australian pianist, composer, and conductor (d. 1960) |