Furuya (written: 古谷 or 古屋) is a Japanese surname. Notable people with the surname include:
Keiji Furuya (古屋 圭司) (born 1952), Japanese politicianMasajiro Furuya (古屋 政次郎) (1862–1938), Japanese American banker, merchant and businessmanMegumi Furuya (古谷 仁) (born 1981), Japanese actress, singer and gravure idolMinoru Furuya (古谷 実) (born 1972), Japanese manga artistMitsutoshi Furuya (古谷 三敏) (born 1936), Japanese manga artistNoriko Furuya (古屋 範子) (born 1956), Japanese politicianSeiichi Furuya (古屋 誠一) (born 1950), Japanese photographerTakuya Furuya (古谷 拓哉) (born 1981), Japanese baseball playerTōru Furuya (古谷 徹) (born 1953), Japanese narrator and voice actorUsamaru Furuya (古屋 兎丸) (born 1968), Japanese manga artist