| 78781 | July 11 | Birth | 1908 – Karl Nabersberg, German youth leader (d. 1946) |
| 78782 | July 11 | Birth | 1910 – Irene Hervey, American actress (d. 1998) |
| 78783 | July 11 | Birth | 1911 – Erna Flegel, German nurse (d. 2006) |
| 78784 | July 11 | Birth | 1912 – Sergiu Celibidache, Romanian conductor and composer (d. 1996) |
| 78785 | July 11 | Birth | 1912 – William F. Walsh, American captain and politician, 48th Mayor of Syracuse (d. 2011) |
| 78786 | July 11 | Birth | 1913 – Paul Gibb, English cricketer (d. 1977) |
| 78787 | July 11 | Birth | 1913 – Cordwainer Smith, American sinologist, author, and academic (d. 1966) |
| 78788 | July 11 | Birth | 1916 – Alexander Prokhorov, Australian-Russian physicist and academic, Nobel Prize laureate (d. 2002) |
| 78789 | July 11 | Birth | 1916 – Reg Varney, English actor and screenwriter (d. 2008) |
| 78790 | July 11 | Birth | 1916 – Gough Whitlam, Australian lieutenant, lawyer, and politician, 21st Prime Minister of Australia (d. 2014) |
| 78791 | July 11 | Birth | 1918 – Venetia Burney, English educator, who named Pluto (d. 2009) |
| 78792 | July 11 | Birth | 1920 – Yul Brynner, Russian-American actor and director (d. 1985) |
| 78793 | July 11 | Birth | 1920 – James von Brunn, American murderer, committed the United States Holocaust Memorial Museum shooting (d. 2010) |
| 78794 | July 11 | Birth | 1921 – Ilse Werner, Dutch-German actress and singer (d. 2005) |
| 78795 | July 11 | Birth | 1922 – Gene Evans, American actor (d. 1998) |
| 78796 | July 11 | Birth | 1922 – Fritz Riess, German-Swiss race car driver (d. 1991) |
| 78797 | July 11 | Birth | 1923 – Richard Pipes, Polish-American historian and academic |
| 78798 | July 11 | Birth | 1923 – Tun Tun, Indian actress and singer (d. 2003) |
| 78799 | July 11 | Birth | 1924 – César Lattes, Brazilian physicist and academic (d. 2005) |
| 78800 | July 11 | Birth | 1924 – Brett Somers, Canadian-American actress and singer (d. 2007) |
| 78801 | July 11 | Birth | 1924 – Charlie Tully, Northern Irish footballer and manager (d. 1971) |
| 78802 | July 11 | Birth | 1925 – Charles Chaynes, French composer |
| 78803 | July 11 | Birth | 1925 – Nicolai Gedda, Swedish tenor and actor |
| 78804 | July 11 | Birth | 1925 – Peter Kyros, American lawyer and politician (d. 2012) |
| 78805 | July 11 | Birth | 1925 – Sid Smith, Canadian ice hockey player and coach (d. 2004) |
| 78806 | July 11 | Birth | 1926 – Frederick Buechner, American minister, theologian, and author |
| 78807 | July 11 | Birth | 1927 – Theodore Maiman, American-Canadian physicist and engineer (d. 2007) |
| 78808 | July 11 | Birth | 1928 – Greville Janner, Baron Janner of Braunstone, Welsh lawyer and politician |
| 78809 | July 11 | Birth | 1928 – Bobo Olson, American boxer (d. 2002) |
| 78810 | July 11 | Birth | 1929 – Danny Flores, singer-songwriter and saxophonist (The Champs) (d. 2006) |