British and Irish History: Biographies
- Roger
- Roger de Mortimer 1st earl of March
- Rory OConnor
- Rory ODonnell earl of Tyrconnel
- Roundell Palmer 1st earl of Selborne
- Rufus Daniel Isaacs 1st marquess of Reading
- Russell
- Saint Aidan
- Saint Chad
- Saint Edmund (king East Anglia)
- Saint Gildas
- Saint Guthlac
- Saint Hilda
- Saint Margaret of Scotland
- Saint Ninian
- Saint Oswald
- Saint Thomas a Becket
- Samuel Ajayi Crowther
- Samuel David
- Samuel Hartlib