Olivier Duhamel (born 2 May 1950) is a French former university professor and politician. As a member of the social-democratic Socialist Party, he was elected as a member of the European Parliament from 1997 to 2004. In 2021 he resigned from the FNSP and his academic position after being accused of the sexual abuse of a minor. In mid-April 2021, French media, citing sources close to the investigation, reported that Duhamel had admitted to sexually abusing his stepson.