Marco Cornaro (1286–1368) was doge of Venice.
Marco Cornaro may also refer to: Marco Cornaro (1406–1479), patrician of Venice and the father of Catherine Cornaro, queen of Cyprus Marco Cornaro (cardinal) (1482–1524), Italian Roman Catholic cardinal Marco Cornaro (1557–1625), Italian Roman Catholic bishop Marco Antonio Cornaro (1583–1639), Italian Roman Catholic bishop