Pérez is a very common Castilian Spanish surname of patronymic origin. Origins. The surname, written in Spanish orthography as Pérez, is a patronymic surname meaning "son of Pedro" ("Pero" in archaic spanish). Its translation to english is Peter. At the same time, the name Pedro derives from the Latin name Petrus, meaning "rock or stone". . Among many other counterparts, some of its equivalents are Peres or Pires in Portuguese, Peris in Catalan, Peters in German, Petrović in Serbo-Croatian, Petrescu in Romanian and Peterson in English and Scandinavian languages. Pronunciation.
https://en.wikipedia.org/wiki/P%C3%A9rez