Colonel Sir Thomas Noel Harris KCH (9 October 1783 – 23 March 1860) was a British Army officer who fought during the Peninsular War and the Waterloo Campaign before finishing his career as Chief Magistrate of Gibraltar.

He became a Lieutenant in the 52nd Regiment of Foot in 1802 and purchased a captaincy in the 18th Light Dragoons in 1807 before retiring through ill health having been refused a transfer to half-pay.

[4] In 1811 he joined the 13th Light Dragoons as a cornet, was promoted to a lieutenancy in the 18th Hussars and afterwards served in the Peninsular War from 1811 to 1813 as deputy assistant adjutant general attached to headquarters.

On receiving the order to join units, Harris left immediately in his red swallow-tailed court dress coat, which he subsequently wore at the battles of Quatre Bras and Waterloo.

He married secondly, Eliza Mary, eldest daughter of Joseph Bettesworth of Ryde in the Isle of Wight, and widow of Hans Francis Hastings, 12th Earl of Huntingdon on 26 April 1838.

Harris' grandson published a biography of his grandfather in 1893: These is a memorial to him in the nave of St Laurence's Church, Ramsgate, Kent,[12] which states that he 'served and bled for his country'.