Tomb of Gia Long (Vietnamese: Lăng Gia Long), officially Thiên Thọ Mausoleum (Thiên Thọ Lăng, chữ Hán: 天授陵), is a royal tomb of the Nguyễn dynasty which is located in the Hương Thọ commune of Hương Trà district, some 20 kilometres (12 mi) south of the city of Huế.