Viscounts | Titles by Rank
- Viscounts of Rendufe
- Viscounts of Rennes
- Viscounts of Reriz
- Viscounts of Resende
- Viscounts of Reynbouts
- Viscounts of Reynella
- Viscounts of Rías
- Viscounts of Riba Tâmega
- Viscounts of Riba Tua
- Viscounts of Ribamar
- Viscounts of Ribandar
- Viscounts of Ribeira Brava
- Viscounts of Ribeira de Alijó
- Viscounts of Ribeira do Paço
- Viscounts of Ribeiro da Silva
- Viscounts of Ribeiro Magalhães
- Viscounts of Ribeiro Real
- Viscounts of Ribera de Adaja
- Viscounts of Richemont
- Viscounts of Rilvas
- Viscounts of Rio Bonito
- Viscounts of Rio Branco
- Viscounts of Rio Claro
- Viscounts of Rio das Velhas
- Viscounts of Rio Formoso
- Viscounts of Rio Grande
- Viscounts of Rio Novo
- Viscounts of Rio Preto
- Viscounts of Rio Sado
- Viscounts of Rio Seco
- Viscounts of Rio Tinto
- Viscounts of Rio Torto
- Viscounts of Rio Vermelho
- Viscounts of Rio Vez
- Viscounts of Rio Xévora
- Viscounts of Roboredo
- Viscounts of Rocaberti
- Viscounts of Rocha de Portimão
- Viscounts of Rochechouart
- Viscounts of Rodez-Bénavent
- Viscounts of Rodrigues da Cunha
- Viscounts of Rodrigues de Oliveira
- Viscounts of Rohan
- Viscounts of Rohan-Chabot
- Viscounts of Roquefeuil
- Viscounts of Roquefeuil-Montpeyroux
- Viscounts of Roriz
- Viscounts of Ros de Olano
- Viscounts of Rosário
- Viscounts of Rosmorduc