Blaisio Ugolino (also known as Blasius or Biagio, surname Ugolini or Ugolinus) (born c. 1700) was an Italian polyhistor.
He is stated to have been a Jewish convert, and was certainly well acquainted with Talmudic literature.
Ugolino is known for the huge collection of treatises on Jewish antiquities, written in Latin, which he brought together in his Thesaurus Antiquitatum Sacrarum (34 vols., Venice, 1744–69).
Biblical, Hebrew, author, and subject indices are contained in vol.
); Pesaḥim, Sheḳalim, Yoma, Sukkah, Rosh ha-Shanah, Ta'anit, Megillah, Ḥagigah, Beẓah, Mo'ed Ḳaṭan, Ma'aserot, Ma'aser Sheni, Ḥallah, Orlah, and Bikkurim (vols.
); besides a part of Maimonides' "Yad" and of Abraham Portaleone's "Shilṭe ha-Gibborim".