| 7403 | January 17 | Birth | 1886 – Glenn L. Martin, American pilot, founded the Glenn L. Martin Company (d. 1955) |
| 7404 | January 17 | Birth | 1887 – Ola Raknes, Norwegian psychoanalyst and philologist (d. 1975) |
| 7405 | January 17 | Birth | 1888 – Babu Gulabrai, Indian philosopher and author (d. 1963) |
| 7406 | January 17 | Birth | 1895 – John Duff, Canadian race car driver (d. 1958) |
| 7407 | January 17 | Birth | 1897 – Marcel Petiot, French physician and serial killer (d. 1946) |
| 7408 | January 17 | Birth | 1899 – Al Capone, American mob boss (d. 1947) |
| 7409 | January 17 | Birth | 1899 – Robert Maynard Hutchins, American philosopher and academic (d. 1977) |
| 7410 | January 17 | Birth | 1899 – Nevil Shute, English engineer and author (d. 1960) |
| 7381 | January 17 | Birth | 1857 – Eugene Augustin Lauste, French-American engineer (d. 1935) |
| 7382 | January 17 | Birth | 1858 – Tomás Carrasquilla, Colombian author (d. 1940) |
| 7383 | January 17 | Birth | 1860 – Douglas Hyde, Irish academic and politician, 1st President of Ireland (d. 1949) |
| 7384 | January 17 | Birth | 1863 – David Lloyd George, English lawyer and politician, Prime Minister of the United Kingdom (d. 1945) |
| 7385 | January 17 | Birth | 1863 – Constantin Stanislavski, Russian actor and director (d. 1938) |
| 7386 | January 17 | Birth | 1865 – Sir Charles Fergusson, 7th Baronet, English general and politician, 3rd Governor-General of New Zealand (d. 1951) |
| 7387 | January 17 | Birth | 1867 – Carl Laemmle, German-American film producer, co-founded Universal Studios (d. 1939) |
| 7388 | January 17 | Birth | 1867 – Sir Alfred Rawlinson, 3rd Baronet, English colonel, pilot, and polo player (d. 1934) |
| 7389 | January 17 | Birth | 1871 – David Beatty, 1st Earl Beatty English admiral (d. 1936) |
| 7390 | January 17 | Birth | 1871 – Nicolae Iorga, Romanian historian and politician, 34th Prime Minister of Romania (d. 1940) |
| 7391 | January 17 | Birth | 1872 – Henri Masson, French fencer (d. 1963) |
| 7392 | January 17 | Birth | 1875 – Florencio Sánchez, Uruguayan journalist and playwright (d. 1910) |
| 7393 | January 17 | Birth | 1876 – Frank Hague, American politician, 30th Mayor of Jersey City (d. 1956) |
| 7394 | January 17 | Birth | 1877 – May Gibbs, English-Australian author and illustrator (d. 1969) |
| 7395 | January 17 | Birth | 1879 – Burt McKinnie, American golfer (d. 1946) |
| 7396 | January 17 | Birth | 1880 – Mack Sennett, Canadian-American actor, director, and producer (d. 1960) |
| 7397 | January 17 | Birth | 1881 – Antoni Łomnicki, Polish mathematician and academic (d. 1941) |
| 7398 | January 17 | Birth | 1881 – Harry Price, English psychologistst and author (d. 1948) |
| 7399 | January 17 | Birth | 1882 – Noah Beery, Sr., American actor and singer (d. 1946) |
| 7400 | January 17 | Birth | 1882 – Arnold Rothstein, American businessman (d. 1928) |
| 7401 | January 17 | Birth | 1883 – Compton Mackenzie, English-Scottish author, poet, and playwright (d. 1972) |
| 7402 | January 17 | Birth | 1886 – Ronald Firbank, English-Italian author (d. 1926) |