| 87811 | August 3 | Death | 1780 – Étienne Bonnot de Condillac, French epistemologist and philosopher (b. 1715) |
| 87812 | August 3 | Death | 1792 – Richard Arkwright, English engineer and businessman (b. 1732) |
| 87813 | August 3 | Death | 1797 – Jeffery Amherst, 1st Baron Amherst, English field marshal and politician, Colonial Governor of Virginia (b. 1717) |
| 87814 | August 3 | Death | 1805 – Christopher Anstey, English author and poet (b. 1724) |
| 87815 | August 3 | Death | 1819 – Simon Knéfacz, Croatian monk and author (b. 1752) |
| 87816 | August 3 | Death | 1835 – Wenzel Müller, Austrian composer and conductor (b. 1767) |
| 87817 | August 3 | Death | 1839 – Dorothea von Schlegel, German author and translator (b. 1763) |
| 87818 | August 3 | Death | 1857 – Eugène Sue, French author and politician (b. 1804) |
| 87819 | August 3 | Death | 1866 – Gábor Klauzál, Hungarian politician, Hungarian Minister of Agriculture (b. 1804) |
| 87820 | August 3 | Death | 1867 – Philipp August Böckh, German historian and scholar (b. 1785) |
| 87821 | August 3 | Death | 1877 – William B. Ogden, American businessman and politician, 1st Mayor of Chicago (b. 1805) |
| 87822 | August 3 | Death | 1879 – Joseph Severn, English painter (b. 1793) |
| 87823 | August 3 | Death | 1894 – George Inness, American painter (b. 1825) |
| 87824 | August 3 | Death | 1916 – Roger Casement, Irish poet and activist (b. 1864) |
| 87825 | August 3 | Death | 1917 – Ferdinand Georg Frobenius, German mathematician and academic (b. 1849) |
| 87826 | August 3 | Death | 1920 – Peeter Süda, Estonian organist and composer (b. 1883) |
| 87827 | August 3 | Death | 1922 – Ture Malmgren, Swedish journalist and politician (b. 1851) |
| 87828 | August 3 | Death | 1924 – Joseph Conrad, Polish-English soldier and author (b. 1857) |
| 87829 | August 3 | Death | 1925 – William Bruce, Australian cricketer (b. 1864) |
| 87830 | August 3 | Death | 1929 – Emile Berliner, German-American inverter and businessman, invented the phonograph (b. 1851) |
| 87831 | August 3 | Death | 1929 – Thorstein Veblen, American economist and sociologist (b. 1857) |
| 87832 | August 3 | Death | 1936 – Konstantin Konik, Estonian surgeon and politician, 19th Estonian Minister of Education (b. 1873) |
| 87833 | August 3 | Death | 1942 – Richard Willstätter, German-Swiss chemist and academic, Nobel Prize laureate (b. 1872) |
| 87834 | August 3 | Death | 1949 – Ignotus, Hungarian poet and author (b. 1869) |
| 87835 | August 3 | Death | 1954 – Colette, French journalist and author (b. 1873) |
| 87836 | August 3 | Death | 1958 – Peter Collins, English race car driver (b. 1931) |
| 87837 | August 3 | Death | 1959 – Herb Byrne, Australian Australian rules footballer (b. 1887) |
| 87838 | August 3 | Death | 1964 – Flannery O'Connor, American author (b. 1925) |
| 87839 | August 3 | Death | 1966 – Lenny Bruce, American comedian, actor, and screenwriter (b. 1925) |
| 87840 | August 3 | Death | 1968 – Björn Berglund, Swedish actor (b. 1904) |