Dũng was born in 1957. Dũng's father is Trì and his mother was Chi Nghiêm bá. His paternal grandparents were Kiện and Quế Nguyễn quí. He had three brothers and a sister, named Trí, Hùng-Thiết, Tuấn Hải and Ngọc-Thanh. He is the second youngest of the five children.