Mairie de Saint-Ouen is a station on line 13 & line 14 of the Paris Métro in the commune of Saint-Ouen. It is named after the nearby town hall of Saint-Ouen.
Wikipedia https://en.wikipedia.org/wiki/Mairie_de_Saint-Ouen_(Paris_Métro)
Address 1 Place de la République, Saint-Ouen 93400, France
Coordinates 48°54'44.291" N 2°20'3.361" E