Antonio Sartorio (1630 – 30 December 1680) was an Italian composer active mainly in Venice, Italy, and in Hanover, Germany. He was a leading composer of operas in his native Venice in the 1660s and 1670s and was also known for composing in other genres of vocal music. Between 1665 and 1675 he spent most of his time in Hanover, where he held the post of Kapellmeister to Duke Johann Friedrich of Brunswick-Lüneburg – returning frequently to Venice to compose operas for the Carnival. In 1676 he became vice maestro di capella at San Marco in Venice.