Colonel Leonard Alison Hall Hamilton (23 December 1862 – 14 March 1957) was an Indian born British Army officer and an amateur first-class cricketer.
He was born in 1862 at the Mount Aboo Hill Station in Rajputana in what was then British India, the second son of Colonel George Harrison.Hamilton served in the King's Own Yorkshire Light Infantry for 30 years, retiring with the rank of colonel before the First World War.
He played first-class cricket for Kent County Cricket Club.