This is a list of foreign-style castles in Japan. In Japan, the word '城(shiro) has broader meanings than western world, so this list includes the buildings near to fortresses.
Korean style castles
Chinese style castle
Portuguese style castle
French style castles
French style bastion fort
Japanese castles with French-style buildings
Other Japanese castles stationed by French style Japanese troops includes Sakura Castle, Utsunomiya Castle, Takasaki Castle, Sendai Castle, Kanazawa Castle, Osaka Castle, Himeji Castle, Hiroshima Castle, Marugame Castle, Kumamoto Castle, Kokura Castle, and Fukuoka Castle.