Angelo Mai (Latin Angelus Maius; 7 March 1782 – 8 September 1854) was an Italian Cardinal and philologist. He won a European reputation for publishing for the first time a series of previously unknown ancient texts. These he was able to discover and publish, first while in charge of the Ambrosian Library in Milan and then in the same role at the Vatican Library. The texts were often in parchment manuscripts that had been washed off and reused; he was able to read the lower text using chemicals. In particular he was able to locate a substantial portion of the much sought-after De republica of Cicero and the complete works of Virgilius Maro Grammaticus.