Constantine Andreou (Also: Costas Andreou, Kostas Andreou; French: Constantin Andréou, Costas Andréou; Greek: Κωνσταντίνος Ανδρέου, Κώστας Ανδρέου) (March 24, 1917 – October 8, 2007) was a painter and sculptor of Greek origin with a highly successful career that spanned six decades. Andreou has been praised by many as an eminent figure in international art of the 20th century.