If you are Sephardic or you are a direct descendant of Sephardic Jews who were expelled from the Iberian Peninsula or forced to convert into Christianity, you may apply for Portuguese citizenship.
According to the Portuguese Decree Law No. 30-A / 2015 of February 27th, that modifies the Regulations on Portuguese Nationality, the designation of “Sephardic Jews” refers to the descendants of the ancient Jews and traditional Jewish communities of the Iberian Peninsula (Sefarad or Hispania), that is, Portugal and Spain. The Law does not make differences between Jews from the Spanish or the Portuguese kingdoms.