Sir John Milley Doyle KCB (1781 – 9 August 1856) was an Anglo-Irish soldier who fought in the Peninsular War and in the War of the Two Brothers.
He was briefly a Whig Member of Parliament for County Carlow.
The second son of Nicholas Milley Doyle, Church of Ireland Rector of Newcastle, County Tipperary, and the grandson of Charles Doyle of Bramblestown, County Kilkenny, Doyle was a nephew of General Sir John Doyle and General Welbore Ellis Doyle (1758-1797), Military Governor of British Ceylon, and a cousin of Lieutenant-General Sir Charles William Doyle. On 31 May 1794, aged thirteen, he was commissioned as an ensign into the newly raised 107th Regiment of Foot.
Doyle was a brother of the campaigner for women's rights Anna Wheeler.
On 21 June 1794 Doyle was promoted Lieutenant into the newly raised 108th Regiment of Foot, the Earl of Granard's. He saw active service in the suppression of the Irish rebellion of 1798. The next year he went to Gibraltar as aide-de-camp to his uncle, then Brigadier-General John Doyle. He remained with the older Doyle throughout the British expedition to Egypt and was at the Battle of Fuentes de Onoro and the storming of Ciudad Rodrigo.