XV Corps was a British infantry corps during World War I. XV Corps was formed in Egypt on 9 December 1915 and then reformed in France on 22 April 1916 under Lieutenant-General Sir Henry Horne.

[1] It took part in the Battle of the Somme in 1916.

[1] Prior to the armistice, the corps halted on the Schelde on 10 November 1918.

It was composed of the following units, the 36th Division having been transferred from the X Corps on 9 November 1918:[2] Commanders included: