Juan Fernandez

(male) (Spanish) form of John, now also used as a given name in English-speaking countries, in spite of the unfavourable associations with Don Juan, the heartless seducer of Mozart's opera Don Giovanni (1788) and libertine hero of Byron's satirical epic (1819–24).

Spanish (Fernández): patronymic from the personal name Fernando. The surname (and to a lesser extent the variant Hernandez) has also been established in southern Italy, mainly in Naples and Palermo, since the period of Spanish dominance there, and as a result of the expulsion of the Jews from Spain and Portugal at the end of the 15th century, many of whom moved to Italy.