St. Gallen
- Dottenwil Castle, Wittenbach
- Ruins of Freudenberg Castle, Bad Ragaz
- Ruins of Fründsberg Castle, Goldingen
- Gräpplang Castle, Flums
- Grünenstein Castle, Balgach
- Kleiner Hahnberg Castle, Berg
- Heerbrugg Castle, Balgach
- Iberg Castle, Wattwil
- Oberberg Castle, Gossau
- Rapperswil Castle, Rapperswil
- Sargans Castle, Sargans
- Wartegg Castle, Rorschacherberg
- Wartensee Castle, Rorschacherberg
- Ruins of Wartenstein Castle, Pfäfers
- Werdenberg Castle, Grabs
- Ruins of Wichenstein Castle, Oberriet
- Zuckenriet Castle, Niederhelfenschwil
Read more about this topic: List Of Castles And Fortresses In Switzerland