Sir Thomas Myddelton Biddulph KCB PC (29 July 1809 – 28 September 1878) was an officer in the British Army and courtier.

[1] Biddulph entered the Army with the purchase of a commission as cornet and sub-lieutenant in the 1st Regiment of Life Guards on 7 October 1826.

[11] He was made an Extra Equerry to the Queen on 16 July 1854[12] and promoted to brevet colonel on 29 January 1857,[13] with seniority later antedated to 28 November 1854.

[16] On 3 March 1866, he resigned as Master of the Household and was appointed joint Keeper of the Privy Purse with Lieutenant-General Charles Grey.

[18] After Grey's appointment as Private Secretary to the Sovereign on 30 April 1867, Biddulph became sole Keeper of the Privy Purse.

[23][1] They had one son and one daughter:[22] General Sir Thomas Myddelton Biddulph died at the Mains of Abergeldie, near Balmoral, after a short illness during which Queen Victoria visited him daily.