Sandadas Coperahewa (born 1923) is a Sinhala writer, poet, scholar, art critic, teacher and journalist in Sri Lanka. Coperhewa was born in Pamburana and educated at Pamburana Sariyuth College. He attended St. Thomas' College, Matara from the age of 9.He was recruited by Warden R.S.de Saram and taught Sinhala, Art and Buddhism for thirty two years (1951 -1983) at S. Thomas' College, Mt Lavinia alongside Arisen Ahubudu, GL Jinadasa and D.S. Jayasekera.