Giorgos Hadjinasios is a Greek composer.
Hadjinasios was born in Thessaloniki on January 19, 1942 and started taking piano lessons at age 6. He went on to study music in Athens and Paris. He has worked with many popular Greek singers, among them: Stratos Dionysiou, Marinella, Dimitra Galani, Dimitris Mitropanos, Nana Mouskouri and Yiannis Parios.
Hadjinasios has also written music for the theatre and films (among them the 1989 British film "Shirley Valentine").
He is the father of Christos Hadjinasios, also a composer.