Lionel Jonathan Perez (born 1970 in Montreal, Quebec) is a Canadian lawyer, entrepreneur and a former member of Montreal City Council for the Darlington district in Côte-des-Neiges-Notre-Dame-de-Grace. On November 21, 2012, he was elected borough mayor of Côte-des-Neiges-Notre-Dame-de-Grace by acclamation, replacing Michael Applebaum after the latter was selected as the new Mayor of Montreal. He is of Sephardi Jewish descent.