The Leeds Pals were a First World War Pals battalion of Kitchener's Army raised in the West Yorkshire city of Leeds. When the battalion was taken over by the British Army it was officially named the 15th Battalion (1st Leeds), The Prince of Wales's Own (West Yorkshire Regiment).
The battalion was formed in September 1914 and underwent training at Colsterdale in the Yorkshire Dales. It became part of the 93rd Brigade of the 31st Division, along with the two Bradford Pals battalions (16th and 18th Battalions, The West Yorkshire Regiment). In December 1915 the Leeds Pals were deployed to Egypt to defend the Suez Canal from the threat of the Ottoman Empire.
In March 1916 the battalion landed in France, joining the British build up for the Battle of the Somme. On the first day on the Somme, 1 July 1916, the 31st Division attacked towards the village of Serre and the Leeds Pals advanced from a line of copses named after the Gospels. The battalion was shelled in its trenches before Zero Hour (7.30 am) and when it advanced, it was met by heavy machine gun fire. A few men got as far as the German barbed wire but no further. Later in the morning the German defenders came out to clear the bodies off their wire, killing any that were still alive. The battalion casualties, sustained in the few minutes after Zero, were 24 officers and 504 other ranks, of which 15 officers and 233 other ranks were killed.
In December 1917 the Leeds Pals were amalgamated with the 2nd Leeds battalion (17th Battalion, The West Yorkshire Regiment, a Bantam battalion) to form the 15th/17th Battalion, The West Yorkshire Regiment.