| 9691 | January 23 | Birth | 1878 – Rutland Boughton, English composer (d. 1960) |
| 9692 | January 23 | Birth | 1881 – Luisa Casati, Italian model (d. 1957) |
| 9693 | January 23 | Birth | 1884 – George McManus, American cartoonist (d. 1954) |
| 9694 | January 23 | Birth | 1894 – Jyotirmoyee Devi, Indian author (d. 1988) |
| 9695 | January 23 | Birth | 1896 – Charlotte, Grand Duchess of Luxembourg (d. 1985) |
| 9696 | January 23 | Birth | 1896 – Alf Hall, English-South African cricketer (d. 1964) |
| 9697 | January 23 | Birth | 1897 – Subhas Chandra Bose, Indian activist and politician (d. 1945) |
| 9698 | January 23 | Birth | 1897 – Margarete Schütte-Lihotzky, Austrian architect (d. 2000) |
| 9699 | January 23 | Birth | 1897 – Ieva Simonaitytė, Lithuanian author (d. 1978) |
| 9700 | January 23 | Birth | 1897 – William Stephenson, Canadian captain and spy (d. 1989) |
| 9701 | January 23 | Birth | 1898 – Sergei Eisenstein, Latvian-Russian director and screenwriter (d. 1948) |
| 9702 | January 23 | Birth | 1897 – Georg Kulenkampff, German violinist (d. 1948) |
| 9703 | January 23 | Birth | 1898 – Randolph Scott, American actor and producer (d. 1987) |
| 9704 | January 23 | Birth | 1898 – Freda Utley, English scholar and author (d. 1978) |
| 9705 | January 23 | Birth | 1899 – Glen Kidston, English race car driver and pilot (d. 1931) |
| 9706 | January 23 | Birth | 1900 – William Ifor Jones, Welsh organist and conductor (d. 1988) |
| 9707 | January 23 | Birth | 1901 – Arthur Wirtz, American businessman (d. 1983) |
| 9708 | January 23 | Birth | 1903 – Jorge Eliécer Gaitán, Colombian lawyer and politician, 16th Minister of National Education of Colombia (d. 1948) |
| 9709 | January 23 | Birth | 1905 – Erich Borchmeyer, German sprinter (d. 2000) |
| 9710 | January 23 | Birth | 1907 – Dan Duryea, American actor and singer (d. 1968) |
| 9711 | January 23 | Birth | 1907 – Hideki Yukawa, Japanese physicist and academic, Nobel Prize laureate (d. 1981) |
| 9712 | January 23 | Birth | 1910 – Django Reinhardt, Belgian guitarist and composer (Quintette du Hot Club de France) (d. 1953) |
| 9713 | January 23 | Birth | 1912 – Boris Pokrovsky, Russian director and manager (d. 2009) |
| 9714 | January 23 | Birth | 1913 – Jean-Michel Atlan, Algerian-French painter (d. 1960) |
| 9715 | January 23 | Birth | 1913 – Wally Parks, American businessman, founded the National Hot Rod Association (d. 2007) |
| 9716 | January 23 | Birth | 1915 – Herma Bauma, Austrian javelin thrower and handball player (d. 2003) |
| 9717 | January 23 | Birth | 1915 – W. Arthur Lewis, Saint Lucian-Barbadian economist and academic, Nobel Prize laureate (d. 1991) |
| 9718 | January 23 | Birth | 1915 – Potter Stewart, American lawyer and judge (d. 1985) |
| 9719 | January 23 | Birth | 1916 – David Douglas Duncan, American photographer and journalist |
| 9720 | January 23 | Birth | 1916 – Airey Neave, English colonel, lawyer, and politician, Shadow Secretary of State for Northern Ireland (d. 1979) |