Barons | Titles by Rank
- Barons of Ritter zu Groenesteyn
- Barons of Ritter-Groenesteyn
- Barons of Rivières
- Barons of Rivîères
- Barons of Robeck
- Barons of Rocafort de Queralt
- Barons of Rochefort
- Barons of Roches
- Barons of Rock Savage
- Barons of Rodes
- Barons of Rodrigues Mendes
- Barons of Roeda
- Barons of Roeder
- Barons of Rogendorf
- Barons of Rohmann
- Barons of Rohrau
- Barons of Rolland de Blomac
- Barons of Romberg
- Barons of Romeiro
- Barons of Ros
- Barons of Rosário
- Barons of Rosen
- Barons of Rosenberg
- Barons of Rosenthal
- Barons of Rosny
- Barons of Rossi
- Barons of Rostrenen
- Barons of Rotberg
- Barons of Rotenhan
- Barons of Rothenthal
- Barons of Rothschild
- Barons of Rotours
- Barons of Rottal
- Barons of Roubin
- Barons of Roussado
- Barons of Roy de Blicquy
- Barons of Ruesdorf
- Barons of Ruffer
- Barons of Ruffey
- Barons of Ruivoz
- Barons of Rüling
- Barons of Rummel
- Barons of Rupierre
- Barons of Ruppa
- Barons of Ruppau
- Barons of Ruttenstein
- Barons of Rzehnicz
- Barons of Sá da Bandeira
- Barons of Saalburg
- Barons of Saalfeld