Geer Steyn (1945) studied at the Rijksakademie from 1968 to 1973. In 1973 he was awarded the silver prix de Rome for sculpture. He then continued his studies in Vienna under the direction of Fritz Wotruba.
Until 2011 he taught Sculpture at the Royal Academy of Visual Arts in The Hague and at the Amsterdam University of the Arts.
In 2018, he was awarded the Sandford Saltus award by the American Numismatic Society for his lifetime achievement for the medallic art.