Willem Haenraets is an Hollandaise painter, known for the Plein-air watercolors.
When he was 16 years old, he started his education at the Academy of Arts in Maastricht.
Four years later he obtained a scholarship from the Belgian Government to study at the National Institute for Fine Arts in Antwerp, in the Master class of professor Sarina (Atelier Opsomer) and professor Vaarten.