Portuguese people are White/Southern European like the Spaniards, Italians, French and Romanians. Portugal could NEVER be considered Hispanic in modern age since the Iberian Peninsula was divided into 2 parts: Lusitania for Portugal and Hispania for Spain.
A surname is part of a personal name that is passed from either or both parents to their offspring. Customs on the format of surnames change from region to region and their use has changed over time. In most Western nations, the surname occurs at the end of a personal name, after a given name or names.
A family name (in Western contexts often referred to as a last name) is a type of surname and part of a person's name indicating the family to which the person belongs. The use of family names is widespread in cultures around the world.