Groslay station is a rail station located in Groslay, France. It is on the Épinay-Villetaneuse–Le Tréport-Mers railway. The station is used by Transilien line H trains from Paris to Persan-Beaumont and Luzarches. The daily number of passengers was estimated to be between 500 and 2,000 in 2002. The station provides 174 parking spaces.