Gwynedd
- Bryn Bras Castle 19th century
- Caernarfon Castle 13th century
- Carndochan Castle 13th century
- Castell y Bere 13th century
- Criccieth Castle 13th century
- Dinas Emrys 12th century keep on Dark Age site
- Dolbadarn Castle 13th century
- Harlech Castle 13th century
- Penrhyn Castle 19th century
Read more about this topic: List Of Castles In Wales