SOURCE: Given Name
OTHER SCRIPTS: Perenn (Breton), Piorra (Irish), Peear (Manx) Perry (Middle English), Pirige (Middle English), Perièr (Occitan)
OTHER FORMS: Pereiros, Pereyro, Pereyros, De Pereiro, Depereiro, Del Pereiro, Do Pereiro, Dopereiro, Do Pereyro, Dopereyro, Pareiro Or Pareyro, Parairo Or Parayro, Perero, Pereros, Pero, Pereiroa, Pereyroa, Perojo, Perujo Or Peruja, Pero, Pereiroa, Pereyroa, Perojo, Peralejo, Peirao, Peiral, Pereirinho, Pereiroa, Pereirúa, Pereiruga, Pereiró, Pereiracho, Peiriño, Periel
Pereiro is a surname of Christian origin because it was an Order of Chivalry (Military Order) founded in the 11th century by the Count of Portugal named Henrique de Borgonha. This Order of Chivalry was confirmed by Pope Alexander III in the 12th century.
Pereiro comes from Galician root Pero that means apple fruit. Therefore, this surname means wild apple tree or apple tree of the mount and this comes from Galicia (Spain).