was a South Netherlandish painter who was born about 1470 and died about 1527. His first name is sometimes spelled Janssone, and his last name is sometimes spelled van Doornik or van Dornick. He was active in Antwerp from about 1509 to about 1525. His paintings are classified stylistically as Antwerp Mannerism, and he may be the same person as the Master of 1518.