Pepe

a diminutive of the male given name José

Perhaps from a reduplication of the last syllable of Josepe, an older variant of José, or from the Latin expression Pater Putativus (“supposed father”) (P.P.), which appeared next to the name of Saint Joseph (José de Nazareth) in texts. Compare Italian Peppe, Catalan Pep, Czech Pepe, and also Spanish Pepa.