La Barre – Ormesson is a railway station in the commune of Deuil-la-Barre (Val-d'Oise department), France.

The station is served by Transilien H trains, on the lines from Paris to Persan-Beaumont and Pontoise.

[1] La Barre-Ormesson is located on the original Paris – Lille line, which was opened on 20 June 1846 by Compagnie des chemins de fer du Nord (North Railway Company).

This line passed along the Montmorency Valley (Ermont-Eaubonne), and headed towards the northeast at Saint-Ouen-l'Aumône, continuing through the Oise valley.

It takes 9 to 15 minutes to reach Paris.