Raf Jan Simons (born 12 January 1968) is a Belgian fashion designer. Beginning in furniture design, Simons launched his own menswear label in 1995. He was creative director at Jil Sander (2005-2012), Christian Dior (2012-2015) and Calvin Klein (2016-2018). As of 1 April 2020, he is the co-creative director of Prada, in partnership with Miuccia Prada.