Surname Перейро (Pereiro 
, Перейро 
) , in the entire world, is quite a rare family name. The family name Перейро is habitual in Andorra, where it is quite a common surname, Uruguay, where it is quite a rare surname, and Argentina. In absolute terms, the name is most common in Argentina, Spain, and Uruguay. Much less frequently, Перейро is the forename as well as the last name.