Manon van Rooijen (born 3 July 1982 in Leerdam) is a freestyle swimmer from the Netherlands, who was a member of the Dutch Women's 4 × 100 m freestyle relay Team that won the silver medal at the 2000 Summer Olympics in Sydney, Australia.
She did so alongside Inge de Bruijn, Wilma van Hofwegen and Thamar Henneken.