Constantine Andreou (also: Costas Andreou, Kostas Andreou; French: Constantin Andréou, Costas Andréou; Greek: ???sta?t???? ??d????, ??sta? ??d????) (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.