65%RatingSave Gender Masculine Usage Italian Pronounced Pron. TOOL-lyo [key·IPA] Meaning & History Italian form of the Roman family name Tullius, derived from the praenomen Tullus, which is of unknown meaning. A famous bearer was Marcus Tullius Cicero, a Roman orator and author. Related NamesFamily Tree·Details Feminine FormTulliaOther Languages & CulturesTullius(Ancient Roman) Tully(History) Túlio(Portuguese) Tulio(Spanish) User SubmissionTullió Categories authors, Etruscan, His Dark Materials characters, Italian Westerns, surnames, uncertain etymology