The Third Battle of Krithia, fought on the Gallipoli peninsula during World War I, was the last in a series of Allied attacks against the Ottoman defences aimed at achieving the original objectives of 25 April 1915. The previous failures in the first and second battles resulted in a less ambitious plan being developed for the attack, but the outcome was another costly failure for the Allies. The allied aim was, as always, to facilitate the capture of Alçı Tepe which commanded most of the peninsula.

The 29th Division, known as the Incomparable Division, was an infantry division of the British Army, formed in early 1915 by combining various Regular Army units that had been acting as garrisons around the British Empire. Under the command of Major-General Aylmer Hunter-Weston, the division fought throughout the Gallipoli Campaign, including the original landing at Cape Helles. From 1916 to the end of the war the division fought on the Western Front in Belgium and France.