60%RatingSave Gender Masculine Usage Ancient Greek [1] Scripts Κάλλιστος(Ancient Greek) Meaning & HistoryExpand Links Greek form of Callistus. Related NamesFamily Tree·Details RootkalosFeminine FormKallistoOther Languages & CulturesCalixte(French) Callisto(Italian) Callistus, Calixtus, Callixtus(Late Roman) Calisto, Calixto(Portuguese) Calisto, Calixto(Spanish) Categories Ancient Greek words, beauty Sources & References Lexicon of Greek Personal Names, available from https://search.lgpn.ox.ac.uk/browse.html?facet-nymRef=Κάλλιστος.