| 96493 | August 25 | Event | 2013 – Six people die and 22 are injured when a train derails in Huimanguillo, Tabasco, Mexico. |
| 96494 | August 25 | Birth | 1530 – Ivan the Terrible, Russian ruler (d. 1584) |
| 96495 | August 25 | Birth | 1561 – Philippe van Lansberge, Dutch astronomer and mathematician (d. 1632) |
| 96496 | August 25 | Birth | 1624 – François de la Chaise, French priest (d. 1709) |
| 96497 | August 25 | Birth | 1662 – John Leverett the Younger, American lawyer, academic, and politician (d. 1724) |
| 96498 | August 25 | Birth | 1707 – Louis I of Spain (d. 1724) |
| 96499 | August 25 | Birth | 1719 – Charles-Amédée-Philippe van Loo, French painter (d. 1795) |
| 96500 | August 25 | Birth | 1724 – George Stubbs, English painter and academic (d. 1806) |
| 96501 | August 25 | Birth | 1741 – Karl Friedrich Bahrdt, German theologian and author (d. 1792) |
| 96502 | August 25 | Birth | 1744 – Johann Gottfried Herder, German poet, philosopher, and critic (d. 1803) |
| 96503 | August 25 | Birth | 1758 – Franz Teyber, Austrian organist and composer (d. 1810) |
| 96504 | August 25 | Birth | 1767 – Louis Antoine de Saint-Just, French soldier and politician (d. 1794) |
| 96505 | August 25 | Birth | 1776 – Thomas Bladen Capel, English admiral (d. 1853) |
| 96506 | August 25 | Birth | 1786 – Ludwig I of Bavaria (d. 1868) |
| 96507 | August 25 | Birth | 1796 – James Lick, American carpenter and piano builder (d. 1876) |
| 96508 | August 25 | Birth | 1802 – Nikolaus Lenau, Romanian-Austrian poet and author (d. 1850) |
| 96509 | August 25 | Birth | 1803 – Luís Alves de Lima e Silva, Duke of Caxias (d. 1880) |
| 96510 | August 25 | Birth | 1817 – Marie-Eugénie de Jésus, French nun and saint, founded the Religious of the Assumption (d. 1898) |
| 96481 | August 25 | Event | 1967 – George Lincoln Rockwell is assassinated. |
| 96482 | August 25 | Event | 1980 – Zimbabwe joins the United Nations. |
| 96483 | August 25 | Event | 1981 – Voyager 2 spacecraft makes its closest approach to Saturn |
| 96484 | August 25 | Event | 1988 – The Chiado area in Lisbon is partially destroyed by a fire. |
| 96485 | August 25 | Event | 1989 – Voyager 2 spacecraft makes its closest approach to Neptune, the second to last planet in the Solar System at the time. |
| 96486 | August 25 | Event | 1989 – Mayumi Moriyama becomes Japan's first female Cabinet Secretary. |
| 96487 | August 25 | Event | 1991 – Belarus gains its independence from the Soviet Union |
| 96488 | August 25 | Event | 1991 – The Battle of Vukovar begins. An 87-day siege of a Croatian city by the Yugoslav People's Army (JNA), supported by various Serbian paramilitary forces, between August–November, during the Croatian War of Independence |
| 96489 | August 25 | Event | 1991 – Linus Torvalds announces the first version of what will become Linux. |
| 96490 | August 25 | Event | 1997 – Egon Krenz, the former East German leader, is convicted of a shoot-to-kill policy at the Berlin Wall. |
| 96491 | August 25 | Event | 2003 – The Tłı̨chǫ land claims agreement is signed between the Dogrib First Nations and the Canadian federal government in Rae-Edzo (now called Behchoko). |
| 96492 | August 25 | Event | 2012 – Voyager 1 spacecraft enters interstellar space becoming the first man-made object to do so. |