The 3rd constituency of Val-d'Oise is a French legislative constituency in the Val-d'Oise département. It is currently represented by Cécile Rilhac of Renaissance (RE).
The 3rd constituency of Val d'Oise includes the towns of Cormeilles-en-Parisis, Taverny and Herblay all of which form part of the northern suburbs of Paris.
The seat has a marginal profile and in 2012 was won by Jean-Noël Carpentier of Robert Hue's Progressive Unitary Movement becoming the party's one and only deputy.
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Official results of French elections from 2002: "Résultats électoraux officiels en France" (in French).