- Radisson Seven Seas Cruises
- Red Star Ferries
- Rederi AB Ballerina
- Rederij Doeksen
- Reederei Hiddensee
- Reederei Peter Deilmann
- Regent Seven Seas Cruises
- Regional Maritime Campania
- Renaissance Cruises
- Ressel Rederi
- RG Line
- Riga Sea Line
- Rīgas Jūras Līnija
- Rosita OY
- Royal Caribbean Cruise Line
- Royal Line
- Royal Olympia Cruises
- Royal Olympic Cruises
- Royal Viking Line
- Rødne Fjord Cruise
- AB Roslagens Skeppslag
- Rosmorport