Pérez is a very common Castilian Spanish surname of patronymic origin.
At the same time, the name Pedro derives from the Latin name Petrus,[1] meaning "rock or stone".
[2] 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.
In Castilian Spanish, the name is pronounced [ˈpeɾeθ] and in Hispanic America, [ˈpeɾes].
In British English, on the contrary, it is usually pronounced with stress on the last syllable.