Giovanni Battista Boazio (fl. 1588 – 1606) was an Italian draftsman and cartographer. A large part of his career was spent working in England, where he would produce maps of Ireland, the Isle of Wight, and an array of maps recording Sir Francis Drake's voyages to the West Indies. His map of Ireland would appear in Ortelius' Theatrum, while his Isle of Wight would provide Mercator with the source for his map of the island.