Name
- Tassell, Hubert, of the Havana1
- Telemsany, Mehemet, of Tripoli1
- Temple - Nugent - Grenville, George, 2nd Earl Temple, Lord Lieutenant of Ireland, 1st Marquis of Buckingham (1784)1
- Temple, Henry, 1st Viscount Palmerston, Chief Remembrancer of the Court of Exchequer in Ireland1
- Terrier, James, junior1
- Tessin, Carl Gustav, Count, Swedish Minister of State1
- Texier, Richard1
- Thompson, James, of Add MS 330851
- Timms, Richard1
- Titley, Walter, Resident at Copenhagen; of Add MS 327311
- Tornaquinci, Giovanni Antonio, Abbate; Imperial Secretary of State1
- Townshend, Charles, 1st Baron Bayning, politician, 1728-18101
- Townshend, Charles, 2nd Viscount Townshend1
- Townshend, Thomas, 1st Viscount Sydney1
- Treadway, George1
- Tubières-Grimoard, Charles, Marquis de Caylus, Governor of the Windward Isles1
- Tutté, William1
- Udny, John, Consul at Venice, and afterwards at Leghorn1
- Ughi, Spanish Agent in London1
- Van der Grift, Bernard1