Name
- Széchenyi, Stefan, Count1
- Sénarmont, Henri Hureau, mineralogist1
- Taylor, Brook, GCH, diplomatist1
- Taylor, Herbert, Lieutenant -General 1825; GCB 1834; Secretary to George III and William IV, fl 1825-18341
- Thirlwall, Connop, Bishop of St. David's; historian1
- Thomson, Alexander, of Banchory House1
- Thomson, Edward Deas, ViceChancellor of Sydney University; KCMG 18741
- Tissot, Charles Joseph, French diplomatist1
- Tite, William, MP; Knight 18691
- Torrigiani, Carlo, of Florence1
- Traill, George, MP; of Add MS 461281
- Trevelyan, Charles Edward, KCB, 1st Baronet of Wallington1
- Trevelyan, Walter Calverley, 6th Baronet, naturalist1
- Turner, Edward, chemist1
- Tyndall, John, natural philosopher1
- Valkevich, Varvara Sergeevna1
- Van de Weyer, Jean Sylvain, Belgian diplomatist1
- Vigne, Godfrey Thomas, traveller1
- Vignoles, Charles Blacker, engineer1
- Virgin, Christian Adolf, Swedish navigator1