Hoàn Lão
![Hoan Lao](/Images/godic/202501/18/Ở_thị_trấn_Hoàn_Lão2538.jpg")
Hoàn Lão is the capital of Bố Trạch District, situated via north-eastern Quảng Bình, is located about 13 km north of Đồng Hới.
The township (thị trấn) is located about 30 km east of Phong Nha-Kẻ Bàng National Park a UNESCO Heritage Site. Hoàn Lão covers 5,70 km² and had a population of 6,850 in 1999.