Alto Trás-os-Montes (Portuguese pronunciation: [ˈaltu ˌtɾaz uʒ ˈmõtɨʃ]), or Nordeste Transmontano, is a former NUTS-level 3 subregion of the Norte Region of Portugal.

The structure of the Trás-os-Montes hierarchy is highlighted by the largest of these "medium"-sized cities (Bragança, Mirandela and Chaves), corresponding to the principal urban poles, and articulated by a complementary urban network, constituted by the seats of the municipalities of Alfândega da Fé, Boticas, Macedo de Cavaleiros, Miranda do Douro, Mogadouro, Montalegre, Ribeira de Pena, Valpaços, Vila Flor, Vila Pouca de Aguiar, Vimioso and Vinhais.

The proximity of Trás-os-Montes with Spain has allowed a cross-cultural and cross-social partnership, that has helped to develop both social and economic projects.

[5] The agro-forestry activities in the region are transitioning to socially or economically viable commerce sectors, with the emigration of more residents into the urban areas.

Agriculture, with its base in the production of olive oil, the raising of cattle, and cultivation of fruit orchards, remains the primary source of income in this region.