British and Irish History
- Royal Commissions
- Royal George
- Royal Navy
- Royal Philharmonic Society
- Royal Society for the Prevention of Cruelty to Animals
- Royalists
- Rulers of England and Great Britain
- Rump Parliament
- Russia Company
- Rye House Plot
- Savage
- Savoy conference
- Scotsman
- Scottish Enlightenment
- secret ballot
- Sects
- self-denying ordinance
- sept
- Serjeant at Law
- settlement house