The Thu Bồn River (Vietnamese: Sông Thu Bồn) is a river in central Vietnam, located in Quảng Nam Province.From its source near the border of Quảng Nam and Quảng Ngãi provinces, it flows northwest through Bắc Trà My, Phú Ninh, Hiệp Đức and Quế Sơn districts; turning northeast, it forms the border between Đại Lộc district and Duy Xuyên district, before emptying into the South China Sea at Hội An.