Marco Sanudo

Marco Sanudo or Marco Sanuto may refer to:


 * Marco I Sanudo (1153–1220), creator and first duke of the Duchy of the Archipelago
 * Marco II Sanudo (died 1303), third duke of the Archipelago from 1262 to his death
 * Marco Sanudo, Lord of Gridia (14th century)
 * Marco Sanudo, Lord of Milos (died after 1376)