| 82381 | July 20 | Death | 1524 – Claude of France (b. 1499) |
| 82382 | July 20 | Death | 1616 – Hugh O'Neill, Earl of Tyrone, Irish soldier and politician (b. 1550) |
| 82383 | July 20 | Death | 1704 – Peregrine White, English-American farmer and soldier (b. 1620) |
| 82384 | July 20 | Death | 1752 – Johann Christoph Pepusch, German-English composer and theorist (b. 1667) |
| 82385 | July 20 | Death | 1816 – Gavrila Derzhavin, Russian poet and politician (b. 1743) |
| 82386 | July 20 | Death | 1866 – Bernhard Riemann, German mathematician and academic (b. 1826) |
| 82387 | July 20 | Death | 1897 – Jean Ingelow, English poet and author (b. 1820) |
| 82388 | July 20 | Death | 1901 – William Cosmo Monkhouse, English poet and critic (b. 1840) |
| 82389 | July 20 | Death | 1903 – Pope Leo XIII (b. 1810) |
| 82390 | July 20 | Death | 1908 – Demetrius Vikelas, Greek businessman and author (b. 1835) |
| 82391 | July 20 | Death | 1908 – Karl Bernhard Zoeppritz, German geophysicist and seismologist (b. 1881) |
| 82392 | July 20 | Death | 1922 – Andrey Markov, Russian mathematician and theorist (b. 1856) |
| 82393 | July 20 | Death | 1923 – Pancho Villa, Mexican general and politician, Governor of Chihuahua (b. 1878) |
| 82394 | July 20 | Death | 1926 – Felix Dzerzhinsky, Russian educator and politician (b. 1877) |
| 82395 | July 20 | Death | 1927 – Ferdinand I of Romania (b. 1865) |
| 82396 | July 20 | Death | 1928 – Kostas Karyotakis, Greek poet and author (b. 1896) |
| 82397 | July 20 | Death | 1932 – René Bazin, French author and academic (b. 1853) |
| 82398 | July 20 | Death | 1937 – Guglielmo Marconi, Italian physicist and engineer, Nobel Prize laureate (b. 1874) |
| 82399 | July 20 | Death | 1941 – Lew Fields, American actor and producer (b. 1867) |
| 82400 | July 20 | Death | 1944 – Ludwig Beck, German general (b. 1880) |
| 82401 | July 20 | Death | 1944 – Mildred Harris, American actress (b. 1901) |
| 82402 | July 20 | Death | 1945 – Paul Valéry, French author and poet (b. 1871) |
| 82403 | July 20 | Death | 1951 – Wilhelm, German Crown Prince (b. 1882) |
| 82404 | July 20 | Death | 1951 – Abdullah I of Jordan (b. 1882) |
| 82405 | July 20 | Death | 1953 – Dumarsais Estimé, Haitian lawyer and politician, 33rd President of Haiti (b. 1900) |
| 82406 | July 20 | Death | 1953 – Jan Struther, English author and hymn-writer (b. 1901) |
| 82407 | July 20 | Death | 1955 – Calouste Gulbenkian, Armenian businessman and philanthropist (b. 1869) |
| 82408 | July 20 | Death | 1956 – James Alexander Calder, Canadian educator and politician, Canadian Minister of Militia and Defence (b. 1868) |
| 82409 | July 20 | Death | 1959 – William D. Leahy, American admiral and diplomat, United States Ambassador to France (b. 1875) |
| 82410 | July 20 | Death | 1965 – Batukeshwar Dutt, Indian activist (b. 1910) |