Gilles Lehouillier is a Canadian politician and former civil servant.

Lehouiller was previously the MNA for the riding of Lévis in the National Assembly of Quebec from 2008 to 2012.

Lehouiller has a bachelor in communications and journalism from the Université Laval.

He was a member of the executive council, member of various committees, vice-president of the Réseau Trans-Sud transit corporation and member of the executive committee for the economic promotion of the Quebec City metropolitan area.

He also worked as a provincial public servant including as regional director for the Ministry of Municipal and Regional Affairs and had various duties related to communications agent.