- Aug 5 "Little Orphan Annie" comic strip by Harold Gray is 1st published in the New York Daily News
- Aug 8 British-Russian trade agreement signed
- Aug 11 1st newsreel pictures of US presidential candidates were taken
- Aug 16 Conference about German recovery payments opens in London
- Aug 16 Dutch-Turkish peace treaty signed
- Aug 17 French-German trade agreement signed
- Aug 18 France begins withdrawing troops from the Ruhr
- Aug 23 Mars' closest approach to Earth since 10th century
- Aug 25 International maritime treaty drawn
- Aug 26 The Catastrophe of Smyrna: known as the Asia Minor Catastrophe to Greeks. The Ottoman army expels Greeks and other non-Turks from Asia Minor. (August 13 OS)
- Aug 28 Georgian opposition stages the August Uprising against the Soviet Union
- Aug 29 Germany's Reichstag approves the Dawes Plan, which sought to solve the WWI reparations problem
World Record
Aug 31 Paavo Nurmi runs world record 10,000m (30:06.2)
Paavo Nurmi