| 69541 | June 18 | Birth | 1816 – Jung Bahadur Rana, Nepali ruler (d. 1877) |
| 69542 | June 18 | Birth | 1834 – Auguste-Théodore-Paul de Broglie, French philosopher and academic (d. 1895) |
| 69543 | June 18 | Birth | 1839 – William H. Seward, Jr., American general and banker (d. 1920) |
| 69544 | June 18 | Birth | 1845 – Charles Louis Alphonse Laveran, French physician and parasitologist, Nobel Prize laureate (d. 1922) |
| 69545 | June 18 | Birth | 1850 – Richard Heuberger, Austrian composer and critic (d. 1914) |
| 69546 | June 18 | Birth | 1854 – E. W. Scripps, American publisher, founded the E. W. Scripps Company (d. 1926) |
| 69547 | June 18 | Birth | 1857 – Henry Clay Folger, American businessman and philanthropist, founded the Folger Shakespeare Library (d. 1930) |
| 69548 | June 18 | Birth | 1858 – Andrew Forsyth, Scottish-English mathematician and academic (d. 1942) |
| 69549 | June 18 | Birth | 1863 – George Essex Evans, English-Australian poet and author (d. 1909) |
| 69550 | June 18 | Birth | 1868 – Miklós Horthy, Hungarian admiral and politician, Regent of Hungary (d. 1957) |
| 69551 | June 18 | Birth | 1870 – Édouard Le Roy, French mathematician and philosopher (d. 1954) |
| 69552 | June 18 | Birth | 1877 – James Montgomery Flagg, American painter and illustrator (d. 1960) |
| 69553 | June 18 | Birth | 1881 – Zoltán Halmay, Hungarian swimmer (d. 1956) |
| 69554 | June 18 | Birth | 1882 – Georgi Dimitrov, Bulgarian compositor and politician, 32nd Prime Minister of Bulgaria (d. 1949) |
| 69555 | June 18 | Birth | 1884 – Édouard Daladier, French captain and politician, Prime Minister of France (d. 1970) |
| 69556 | June 18 | Birth | 1886 – George Mallory, English lieutenant and mountaineer (d. 1924) |
| 69557 | June 18 | Birth | 1886 – Alexander Wetmore, American ornithologist and paleontologist (d. 1978) |
| 69558 | June 18 | Birth | 1887 – Tancrède Labbé, Canadian businessman and politician (d. 1956) |
| 69559 | June 18 | Birth | 1890 – Gideon Wahlberg, Swedish actor, screenwriter, and film director (d. 1948) |
| 69560 | June 18 | Birth | 1891 – Mae Busch, Australian-American actress and singer (d. 1946) |
| 69561 | June 18 | Birth | 1895 – Manuela Fernández-Fojaco, Spanish super-centenarian (d. 2009) |
| 69562 | June 18 | Birth | 1896 – Blanche Sweet, American actress and singer (d. 1986) |
| 69563 | June 18 | Birth | 1897 – Martti Marttelin, Finnish runner (d. 1940) |
| 69564 | June 18 | Birth | 1901 – Grand Duchess Anastasia Nikolaevna of Russia (d. 1918) |
| 69565 | June 18 | Birth | 1901 – Llewellyn Rees, English actor (b. 1994) |
| 69566 | June 18 | Birth | 1902 – Paavo Yrjölä, Finnish decathlete (d. 1980) |
| 69567 | June 18 | Birth | 1903 – Jeanette MacDonald, American actress and singer (d. 1965) |
| 69568 | June 18 | Birth | 1903 – Raymond Radiguet, French author and poet (d. 1923) |
| 69569 | June 18 | Birth | 1904 – Keye Luke, Chinese-American actor (d. 1991) |
| 69570 | June 18 | Birth | 1904 – Manuel Rosenthal, French conductor and composer (d. 2003) |