Marx Dormoy (French pronunciation: [maʁks dɔʁmwa]) is a station on line 12 of the Paris Métro in the districts of La Chapelle and Goutte d'Or and the 18th arrondissement.

The station opened on 23 August 1916 as part of the extension of the Nord-Sud company's line A from Jules Joffrin to Porte de la Chapelle.

The station is named after Marx Dormoy (1888–1941), a French socialist politician assassinated by Cagoulards.

Nearby is the church of Jeanne d'Arc, where Joan of Arc prayed on 3 September 1429 and the la Chapelle market.

This article related to the Paris Métro is a stub.