Eaubonne (French pronunciation: [obɔn] ^ⓘ) is a commune in the Val-d'Oise department, in the northern outer suburbs of Paris, France. It is located 16.1 km (10.0 mi) from the centre of Paris.

The name Eaubonne is derived from the Latin aqua bona, meaning 'good water'.

The Hôtel de Ville was completed in 1976.

It is twinned with Matlock, Derbyshire, England; Budenheim, Germany and Vălenii de Munte, Romania.

Eaubonne is served by Ermont–Eaubonne station which is an interchange station on Paris RER line C, on the Transilien Paris-Nord suburban rail line, and on the Transilien Paris-Saint-Lazare suburban rail line. This station is located at the border between the commune of Eaubonne and the commune of Ermont, on the Ermont side of the border.

Eaubonne is also served by Champ de courses d'Enghien station on the Transilien Paris – Nord suburban rail line. This station is located at the border between the commune of Eaubonne and the commune of Soisy-sous-Montmorency, on the Soisy-sous-Montmorency side of the border.