Colonel William Leslie Davidson CB JP (31 January 1850 – 3 August 1915) was a Scottish first-class cricketer and British Army officer. After being commissioned into the Royal Horse Artillery in 1869, Davidson's military career consisted of service in Africa during the Anglo-Zulu War and Second Boer War, and the subcontinent during the Second Anglo-Afghan War. He retired from the military in 1907 with the rank of colonel, but returned to the service at the outbreak for the First World War]], after which he commanded a base depot in France. He was the oldest first-class cricketer to be killed in the First World War.