Marc Voorhoeve (5 April 1950, Amsterdam – 7 October 2011, Eindhoven) was a Dutch mathematician who introduced the Voorhoeve index of a complex function in 1976. Marc studied at the University of Leiden where he wrote a thesis on exponential polynomials.The Voorhoeve index is a result from this work. He then worked at Centrum Wiskunde & Informatica and at Philips Data Systems,a division of Philips that manufactured minicomputers.