Luca Gaurico (in Latin, Lucas Gauricus) (March 12, 1476 – March 6, 1558 in Rome) was an Italian astrologer, astronomer, and mathematician. He was born to a poor family in the Kingdom of Naples, and studied judicial astrology, a subject he defended in his Oratio de Inventoribus et Astrologiae Laudibus (1508). Judicial astrology concerned the fate of man (astrologia judiciaria; mundane astrology) as influenced by the stars. His most famous work is the Tractatus Astrologicus.