Porto Formoso is a civil parish in the municipality of Ribeira Grande in the Portuguese archipelago of the Azores. The population in 2011 was 1,265, in an area of 12.79 km<sup>2</sup>.
History
thumb|235px|left|The ornate facada and staircase of the parochial Church of Nossa Senhora da Graça
The establishment of this civil parish remotes to the early part of the 16th century, as first recorded by Pedro Vaz Pacheco. On 2 June 1509, he ordered the construction of a Chapel of Bom Jesus, to serve his descendants. The terrain in this parish is devoted to agriculture and as pasture-lands, but several tracts are dedicated to the cultivation of tea plants, owing to the areas micro-climate.