Phú Long may refer to several places in Vietnam, including:
Phú Long, a commune of Ninh Bình province Phú Long, Bình Thuận, a former township of Hàm Thuận Bắc District Phú Long, Bến Tre, a former commune of Bình Đại District Phú Long, Đồng Tháp, a former commune of Châu Thành District, Đồng Tháp Phú Long, Ninh Bình, a former commune of Nho Quan District Phú Long, An Giang, a former commune of Phú Tân District, An Giang