Diogo de Teive (fl. 1451-1472) was a maritime captain and squire to the House of Infante D. Henrique (1394-1460) during the Portuguese period of discovery. Following his exploration into the western Atlantic in the area of Newfoundland, in 1452 he discovered the western islands of the archipelago of the Azores: for his efforts he was appointed Donatary for the islands of Flores and Corvo.