Jim Aernouts (born 23 March 1989 in Antwerp) is a Belgian former professional cyclist, who rode professionally between 2008 and 2021 for the Palmans–Cras, BKCP–Powerplus, Sunweb–Napoleon Games and Baloise–Trek Lions teams. Following his retirement, Aernouts now works as a maître d'hôtel at a restaurant that he owns with his wife in Essen.