São Martinho de Anta is a former civil parish in the municipality of Sabrosa, Portugal. In 2013, the parish merged into the new parish São Martinho de Antas e Paradela de Guiães. The small parish extends into an area of 15.95 km², and includes a minor population of 870 inhabitants. It received its name, in the 20th century, but became more known, as the birthplace of the Portuguese poet and writer Miguel Torga, who lived in an isolated home in the parish.