Ο Κώστας Οικονόμου γεννήθηκε στη Κισσόνεργα το 1925. Τα πρώτα μαθήματα ζωγραφικής τα πήρε στο Κολλέγιο Μόρφου (1943 - 1945) με δάσκαλο τον Α. Διαμαντή. Συνέχισε το Kings Altred’s College (1956 - 1957) στο Winchester της Αγγλίας, όπου σπούδασε τέχνη και παιδαγωγικά, στο Παιδαγωγικό Ινστιτούτο του University of London (1972 - 1973) ενώ την ίδια περίοδο παρακολούθησε μαθήματα ζωγραφικής στη St. Martin’s School of Art του Λονδίνου.

Born in Kissonerga (Pafos) 1925.

Studies: Teachers’ Training College, at Morphou, King Alfred’s College (Winchester, England) London University (Art Department of Institute of Education), St. Martin’s School of Art (London).
He has taught Art in primary and secondary schools of Cyprus and has served as an Inspector of Art in Primary Education.

He is mainly a painter but he does a lot of engravings and sculptures. In painting he works in oils, acrylics and his favourite water-colours.

His works are included in public and private collection in Cyprus and abroad (State Collection of Contemporary Art, Makarios Foundation Collection; Paphos, Larnaca and Corju Municipalities Collections, Smolyan State Gallery etc, Monumental works (reliefs and murals, can be found in schools, banks, churches and private houses).