- Rietwis
- Rifacher
- Rifferswil
- Rifferswil / Mattler
- Rifferswil / Ober-Rifferswil
- Rifferswil / Unter-Rifferswil
- Rigacher
- Rigi
- Rikon / Hinter-Rikon
- Rikon / Rikon (Dorfkern)
- Rikon / Schöntal
- Rinderbrunnen
- Rinderweid
- Ringwil
- Riset
- Risi
- Ristall
- Ristet
- Ritterhaus
- Rittweg
- Robank
- Robänkli
- Rohräcker
- Römerhof
- Rorbas
- Roren
- Rosengarten
- Rösli
- Rossi
- Rossmättli