RWS
- 6.5 X 68 RWS
- Audi R8
- RESTful web service
- RWS Bruxelles
- RWS Group
- RWS Motorsport
- Rajadamnern Stadium
- Ravens Wood School
- Remote weapon station
- Resorts World Sentosa
- Rider–Waite tarot deck
- Rijkswaterstaat
- Romano–Ward syndrome
- Royal Watercolour Society
- Running with Scissors (company)
- Stochastic universal sampling
- The Railway Series