Bart Aernouts (born 23 June 1982 in Essen) is a Belgian former professional cyclist who competed mainly in cyclo-cross races. Aernouts often finished only a few places behind big names such as Sven Nys, Niels Albert and ZdenÃÂk à  tybar, but occasionally managed top results in high calibre races of the Gazet van Antwerpen Trophy or the Superprestige.
He achieved his major wins in Sint-Michielsgestel, where he won both the Junior UCI Cyclo-cross World Championships in 2000 and the Cyclo-cross Sint-Michielsgestel in 2010.
Aernouts announced his retirement from professional cyclocross in February 2015 after illness curtailed his 2014âÂÂ15 season.