Martim Longo, also known as Martinlongo or Martilongo is a quiet Portuguese parish in the municipality of Alcoutim with a population of 1,030 inhabitants (2011).
The parish is famous for the production of various food products, such as a type of bread baked in a wood oven, the bread of Martim Longo, with three industrial units.
It also has the only cereal bar unit in Portugal, Alsnacks Energybar, a pioneer in natural production that manufactures its own brand and private brands, being still a pioneer in the manufacture of bars with Konjac soluble fibers in the world.
It also has the largest photovoltaic park, one of the largest in Europe, (there are two solar parks with an installed capacity of 220 megawatts), continuing ahead in the European Union.
Martinlongo denotes human occupation since remote periods, even presenting some Roman archaeological remains, having its heyday in the 16th century, when it was the most important town in the municipality of Alcoutim, with a strong textile industry. The peaceful parish is proud of its 16th century Mother Church, the Hermitages of Espírito Santo, São Sebastião or Santa Justa and also in the museum centers in Santa Justa and Barrada, dedicated to the ethnology of this interesting region, full of tradition and customs that are important to preserve. One of Martinlongo’s greatest heritage assets is its rich handicrafts, namely the Wool Blankets and the very famous Jute Dolls, or cork miniatures.