| 91943 | August 14 | Birth | 1625 – François de Harlay de Champvallon, French archbishop (d. 1695) |
| 91944 | August 14 | Birth | 1642 – Cosimo III de' Medici, Grand Duke of Tuscany (d. 1723) |
| 91945 | August 14 | Birth | 1653 – Christopher Monck, 2nd Duke of Albemarle, English colonel and politician, Lieutenant Governor of Jamaica (d. 1688) |
| 91946 | August 14 | Birth | 1688 – Frederick William I of Prussia (d. 1740) |
| 91947 | August 14 | Birth | 1714 – Claude Joseph Vernet, French painter (d. 1789) |
| 91948 | August 14 | Birth | 1727 – Louise Élisabeth of France (d. 1759) |
| 91949 | August 14 | Birth | 1727 – Princess Henriette of France (d. 1752) |
| 91950 | August 14 | Birth | 1738 – Leopold Hofmann, Austrian composer and conductor (d. 1793) |
| 91921 | August 14 | Event | 1971 – Bahrain declares independence as the State of Bahrain. |
| 91922 | August 14 | Event | 1972 – An East German Ilyushin Il-62 crashes during takeoff from East Berlin, killing 156. |
| 91923 | August 14 | Event | 1973 – The Pakistan Constitution of 1973 comes into effect. |
| 91924 | August 14 | Event | 1974 – The second Turkish invasion of Cyprus begins 140,000 to 200,000 Greek Cypriots become refugees. Around 6,000 massacred, 1,619 missing. |
| 91925 | August 14 | Event | 1975 – The Rocky Horror Picture Show, the longest-running release in film history, opens in London. |
| 91926 | August 14 | Event | 1980 – Lech Wałęsa leads strikes at the Gdańsk, Poland shipyards. |
| 91927 | August 14 | Event | 1987 – All the children held at Kia Lama, a rural property on Lake Eildon, Australia, run by the Santiniketan Park Association, are released after a police raid. |
| 91928 | August 14 | Event | 1994 – Ilich Ramírez Sánchez, also known as "Carlos the Jackal", is captured. |
| 91929 | August 14 | Event | 1996 – Greek Cypriot refugee Solomos Solomou is murdered by Turkish forces while trying to climb a flagpole in order to remove a Turkish flag from its mast in the United Nations Buffer Zone in Cyprus. |
| 91930 | August 14 | Event | 2003 – A widescale power blackout affects the northeast United States and Canada. |
| 91931 | August 14 | Event | 2005 – Helios Airways Flight 522, en route from Larnaca, Cyprus to Prague, Czech Republic via Athens, crashes in the hills near Grammatiko, Greece, killing 121 passengers and crew. |
| 91932 | August 14 | Event | 2006 – Chencholai bombing: Sixty-one Sri Lankan Tamils are killed in a Sri Lankan Air force bombing. |
| 91933 | August 14 | Event | 2007 – The Kahtaniya bombings kills at least 796 people. |
| 91934 | August 14 | Event | 2010 – The first-ever Youth Olympic Games are held in Singapore. |
| 91935 | August 14 | Event | 2013 – Egypt declares a state of emergency as security forces kill hundreds of demonstrators supporting former president Mohamed Morsi. |
| 91936 | August 14 | Event | 2015 – The US Embassy in Havana, Cuba re-opens after 54 years of being closed when Cuba–United States relations were broken off. |
| 91937 | August 14 | Birth | 1297 – Emperor Hanazono of Japan (d. 1348) |
| 91938 | August 14 | Birth | 1473 – Margaret Pole, Countess of Salisbury (d. 1541) |
| 91939 | August 14 | Birth | 1479 – Catherine of York (d. 1527) |
| 91940 | August 14 | Birth | 1499 – John de Vere, 14th Earl of Oxford, English politician, Lord Great Chamberlain (d. 1526) |
| 91941 | August 14 | Birth | 1575 – Robert Hayman, English-Canadian poet and politician (d. 1629) |
| 91942 | August 14 | Birth | 1599 – Méric Casaubon, Swiss-English scholar and author (d. 1671) |