Thom - Troy
- Thomas á Jesu
- Thomas à Kempis
- Thomas Abel, Blessed
- Thomas Abington
- Thomas Alfield, Venerable
- Thomas and Arthur Marshall
- Thomas Anderton
- Thomas Andrew Becker
- Thomas Aquinas, Saint
- Thomas Arthur
- Thomas Arundel
- Thomas Ashby
- Thomas Atkinson, Venerable
- Thomas Augustine Arne
- Thomas Augustine Hendrick
- Thomas Bailey
- Thomas Baily
- Thomas Bakocz
- Thomas Becket, Saint
- Thomas Belchiam, Venerable
- Thomas Bouquillon
- Thomas Bourchier
- Thomas Bracken
- Thomas Burke
- Thomas Canon Flanagan
- Thomas Cardinal Wolsey
- Thomas Carve
- Thomas Ceva
- Thomas Chisholm Anstey
- Thomas Christians, Saint
- Thomas Codrington
- Thomas Conecte
- Thomas Cottam, Blessed
- Thomas d'Arcy McGee
- Thomas de Lemos
- Thomas de Vallgornera
- Thomas Dease
- Thomas Dempster
- Thomas Dongan
- Thomas Dorman