| 47581 | April 25 | Birth | 1725 – Augustus Keppel, 1st Viscount Keppel, English admiral and politician (d. 1786) |
| 47582 | April 25 | Birth | 1767 – Nicolas Oudinot, French general (d. 1847) |
| 47583 | April 25 | Birth | 1770 – Georg Sverdrup, Norwegian philologist and academic (d. 1850) |
| 47584 | April 25 | Birth | 1775 – Carlota Joaquina of Spain (d. 1830) |
| 47585 | April 25 | Birth | 1776 – Princess Mary, Duchess of Gloucester and Edinburgh (d. 1857) |
| 47586 | April 25 | Birth | 1818 – Gustavus Vaughan Brooke, Irish actor (d. 1866) |
| 47587 | April 25 | Birth | 1843 – Princess Alice of the United Kingdom (d. 1878) |
| 47588 | April 25 | Birth | 1849 – Felix Klein, German mathematician and academic (d. 1925) |
| 47589 | April 25 | Birth | 1850 – Luise Adolpha Le Beau, German composer and educator (d. 1927) |
| 47590 | April 25 | Birth | 1851 – Leopoldo Alas, Spanish author, critic, and academic (d. 1901) |
| 47591 | April 25 | Birth | 1862 – Edward Grey, 1st Viscount Grey of Fallodon, English ornithologist and politician, Secretary of State for Foreign and Commonwealth Affairs (d. 1933) |
| 47592 | April 25 | Birth | 1868 – John Moisant, American pilot and engineer (d. 1910) |
| 47593 | April 25 | Birth | 1871 – Lorne Currie, French-English sailor (d. 1926) |
| 47594 | April 25 | Birth | 1873 – Walter de la Mare, English poet and author (d. 1956) |
| 47595 | April 25 | Birth | 1874 – Guglielmo Marconi, Italian businessman and inventor, developed Marconi's law, Nobel Prize laureate (d. 1937) |
| 47596 | April 25 | Birth | 1874 – Ernest Webb, English-Canadian race walker (d. 1937) |
| 47597 | April 25 | Birth | 1876 – Jacob Nicol, Canadian publisher, lawyer, and politician (d. 1958) |
| 47598 | April 25 | Birth | 1878 – William Merz, American gymnast and triathlete (d. 1946) |
| 47599 | April 25 | Birth | 1887 – Kojo Tovalou Houénou, Beninese lawyer and critic (d. 1936) |
| 47600 | April 25 | Birth | 1892 – Maud Hart Lovelace, American author (d. 1980) |
| 47601 | April 25 | Birth | 1897 – Mary, Princess Royal and Countess of Harewood (d. 1965) |
| 47602 | April 25 | Birth | 1898 – Fred Haney, American baseball player, coach, and manager (d. 1977) |
| 47603 | April 25 | Birth | 1900 – Gladwyn Jebb, English politician and diplomat, Secretary-General of the United Nations (d. 1996) |
| 47604 | April 25 | Birth | 1900 – Wolfgang Pauli, Austrian-Swiss physicist and academic, Nobel Prize laureate (d. 1958) |
| 47605 | April 25 | Birth | 1902 – Werner Heyde, German psychiatrist and academic (d. 1964) |
| 47606 | April 25 | Birth | 1902 – Mary Miles Minter, American actress (d. 1984) |
| 47607 | April 25 | Birth | 1903 – Andrey Kolmogorov, Russian mathematician and academic (d. 1987) |
| 47608 | April 25 | Birth | 1905 – George Nepia, New Zealand rugby player and referee (d. 1986) |
| 47609 | April 25 | Birth | 1906 – William J. Brennan, Jr., American colonel and jurist (d. 1997) |
| 47610 | April 25 | Birth | 1908 – Edward R. Murrow, American journalist (d. 1965) |