- The Battle of Fromelles commences on the Western Front in France. The Australian 5th Division is committed in a poorly planned and executed attempt to take German trench lines. This action results in the worst 24 hours to date in Australian military history, with 5,533 casualties including 1,917 men killed
- Albert Leslie Singleton is killed in action the Battle of Fromelles
- Charles William Gordon Conroy is killed in action in the Battle of Fromelles
- Arnold Needham is killed in action in the Battle of Fromelles
- George Alfred Blunt dies of wounds received in the Battle of Fromelles
- The Australian 1st Division enters the rear area of Albert in preparation for action at Pozières on 23 July
- The Leader publishes one of the last letters written by Herbert Henry Argall, who was killed in action in France on 23 June 1916. The letter is dated 11 May 1916 and says that the situation is “not too good when Fritz over yonder starts lobbing shells about”. The Late Bert Argall