Dâu Temple, also known under formal names: Diên Ứng, Pháp Vân, and Cổ Châu, is a major Buddhist temple in Thanh Khương commune, huyện Thuận Thành, Bắc Ninh Province. Located some 30 km east of Hanoi, the temple historically marks the ancient settlement of Luy Lâu, once an important center of Buddhism in Vietnam.