The painter Costas Joachim was born in Bellapais, Cyprus, in 1936.
From 1961 to 1963, he studied art at the Bath Academy of Art in the United Kingdom, specializing in painting, sculpture, and visual perception, as well as art education, graduating with a degree from the University of Bristol. In 1975, he obtained a degree in painting from the Athens School of Fine Arts, and in 1980, he earned a postgraduate diploma in painting, aesthetics, and art history from the Byam Shaw School of Art (Chelsea College of Arts) in London.
From 1966 to 1974, he worked and exhibited alongside his wife, Susan Kerr-Joachim, at their studio and gallery in Bellapais, Cyprus. Following the 1974 Turkish invasion of Cyprus, they lived in London and Athens, and since 1977, they live and work in Bellapais.
During his first solo exhibition at the Hilton Gallery in Nicosia in 1966, the painter Christoforos Savva and the art critic Tonis Spiteris selected Joachim’s works for the 34th Venice Biennale 1968. He held solo exhibitions in Cyprus, Athens, London, Berlin, and Munich. He also participated in numerous group and international exhibitions in Cyprus, Italy, Hamburg, London, and elsewhere (e.g., 10th São Paulo Art Biennial 1969, 1st New Delhi International Triennale 1971, Paris Biennale for Young Artists 1971, Florence Biennale 2009).
He received several awards for his work, including the Contemporary Painting Award (Montecatini, Italy, 1969), the Environmental Artwork Award (Paris, 1971), a Ford Foundation grant (1977), and a British Council grant (1979). During the period of 2003–2009, he was honored with the annual Presidential Award for his contribution to the cultural scene of painting in Cyprus.