Adriaan "Ad" Dekkers (Nieuwpoort, South Holland, 21 March 1938 – Gorinchem, 27 February 1974) was a Dutch artist mostly known for his reliefs involving simple geometrical forms. Dekkers was born to Hendrik Pieter Dekkers, a school principal, and Anna Elizabeth Berdina Godtschalk. Adrian attended his father's school and also received training as a decorative painter. Between 1954 and 1958 he studied at the Willem de Kooning Academy in Rotterdam where he was mostly engaged in drawing of landscapes and still images. In February 1960 Dekkers entered military service, and in December 1961 married Machelina Hendrika van Bruggen, with whom he had one son.