- Many Australian troops spend Christmas Day at sea en route from Gallipoli to Egypt; others are camped on the island of Lemnos.
- Major Ernest Harris writes from Lemnos:
Each man was given a ‘Christmas Billy’, and I can assure you they opened them as eagerly as children at home do open their Christmas stockings … Just one thing hurt very much — it was the picture on the outside of the billy, showing a Kangaroo on the map of Gallipoli, with his tail knocking a Turk into the sea and underneath the words ‘THIS BIT OF THE WORLD BELONGS TO US’.
- British troops kill 300 Senussi at Wadi Majid. British losses number 13 dead and 51 wounded.