| 116761 | October 12 | Birth | 1921 – Art Clokey, American animator, producer, screenwriter, and voice actor, created Gumby (d. 2010) |
| 116762 | October 12 | Birth | 1921 – Jaroslav Drobný, Czech-English tennis player and ice hockey player (d. 2001) |
| 116763 | October 12 | Birth | 1921 – Logie Bruce Lockhart, Scottish rugby player and journalist |
| 116764 | October 12 | Birth | 1922 – William H. Sullivan, American soldier and diplomat, United States Ambassador to the Philippines (d. 2013) |
| 116765 | October 12 | Birth | 1923 – Jean Nidetch, American businesswoman, co-founded Weight Watchers (d. 2015) |
| 116766 | October 12 | Birth | 1923 – Goody Petronelli, American boxer, trainer, and manager (d. 2012) |
| 116767 | October 12 | Birth | 1924 – Doris Grau, American actress (d. 1995) |
| 116768 | October 12 | Birth | 1924 – Leonidas Kyrkos, Greek politician (d. 2011) |
| 116769 | October 12 | Birth | 1924 – Mimis Plessas, Greek pianist and composer |
| 116770 | October 12 | Birth | 1925 – Denis Lazure, Canadian psychiatrist and politician (d. 2008) |
| 116771 | October 12 | Birth | 1925 – Essie Mae Washington-Williams, American author and educator (d. 2013) |
| 116772 | October 12 | Birth | 1928 – Al Held, American painter and academic (d. 2005) |
| 116773 | October 12 | Birth | 1928 – Domna Samiou, Greek singer and musicologist (d. 2012) |
| 116774 | October 12 | Birth | 1928 – Rangel Valchanov, Bulgarian actor, director, and screenwriter (d. 2013) |
| 116775 | October 12 | Birth | 1929 – Nappy Brown, American singer-songwriter (d. 2008) |
| 116776 | October 12 | Birth | 1929 – Brian Cobby, English actor (d. 2012) |
| 116777 | October 12 | Birth | 1929 – Robert Coles, American psychologist, author, and academic |
| 116778 | October 12 | Birth | 1929 – Magnus Magnusson, Icelandic-Scottish journalist and academic (d. 2007) |
| 116779 | October 12 | Birth | 1930 – Denis Brodeur, Canadian ice hockey player and photographer (d. 2013) |
| 116780 | October 12 | Birth | 1930 – Milica Kacin Wohinz, Slovenian historian and author |
| 116781 | October 12 | Birth | 1931 – Ole-Johan Dahl, Norwegian computer scientist and academic, co-developed Simula (d. 2002) |
| 116782 | October 12 | Birth | 1932 – Dick Gregory, American comedian, actor, and author |
| 116783 | October 12 | Birth | 1932 – Ned Jarrett, American race car driver and sportscaster |
| 116784 | October 12 | Birth | 1932 – John Moffat, Danish physicist and academic |
| 116785 | October 12 | Birth | 1933 – Guido Molinari, Canadian painter and art collector (d. 2004) |
| 116786 | October 12 | Birth | 1934 – James "Sugar Boy" Crawford, American singer-songwriter and pianist (d. 2012) |
| 116787 | October 12 | Birth | 1934 – Richard Meier, American architect, designed the Getty Center and City Tower |
| 116788 | October 12 | Birth | 1934 – Albert Shiryaev, Russian mathematician and academic |
| 116789 | October 12 | Birth | 1934 – Oğuz Atay, Turkish engineer and author (d. 1977) |
| 116790 | October 12 | Birth | 1935 – Don Howe, English footballer and manager |