Costas Joachim was born in Bellapais, Kyrenia, Cyprus in 1936.
From 1961-63, he studied art at Bath Academy of Art, UK, with speciality in painting, sculpture, visual perception and art education, acquiring the degree of Fine Arts and Art Education of the University of Bristol UK.
In 1968 Joachim presented his first solo exhibition at the Cyprus Hilton of Nicosia. From this exhibition, the artist Christoforos Savva and the International Art Critic Tony Spiteris, selected art works for presentation of Cyprus at the 34th Biennale of Venice Italy, in 1968.
In 1975 he acquired the diploma of Fine Arts of the Polytechnic of Athens followed in 1980 by the postgraduate Diploma in Painting, Aesthetics and Art History at the Byam Shaw School, Chelsea College of Art London.
In the years from 1970-1980 he presented works internationally at Galleries Europa in Berlin and Munich, Galleries Lambert in Los Angeles, and also others in Paris, Hamburg, Montecatini, Florence and Athens. His participations in 2009 and 2015 in the International Biennales of Florence were also significant.
From 2003-2009 Joachim was honoured annually with the Presidential Prize for his contribution to the cultural scene of Painting in Cyprus.