Gunung Tua is a town and district (kecamatan) in the North Sumatra province of Indonesia, and it is the seat (capital) of North Padang Lawas Regency. Until 2007 Gunung Tua district was part of South Tapanuli Regency, but on 17 July 2007, Gunung Tua was endorsed as the capital of the new North Padang Lawas Regency.