Costas Coulentianos was born in Athens in 1915. He studied at The School of Fine Art, Athens between 1936 and 1939, and later in Paris at the Académie de la Grande Chaumière with a grant from The French government under Ossip Zadkine.

In Paris he met Henri Laurens who had an influence on him. His first solo exhibition was held in Paris in 1962.

He presented his work in 1953 at the Salon de la Jeune Sculpture, Paris, in 1953 at Biennale Antwerp, in 1955 at The Sao Paolo Biennale and in 1964 at The Venice Biennale.

Coulentianos organized workshops on sculpture at the Ecole des Arts Decoratifs of Paris (1975-6) and the Ecole des Beaux-Arts Marseilles (1979-80). In 1984, he was bestowed the Chevalier des Arts et des Lettres by the French Government.

He had more than 30 solo exhibitions worldwide and took part in numerous group exhibitions. His works decorate public spaces in several European cities such as Lyon, Brussels and Athens.

His work can be found at The National Gallery, Athens, The Benaki Museum, The Municipal Gallery of Athens, The Macedonian Museum of Contemporary Art, and in many private collections in Athens and internationally.