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A15 autoroute
Route information
Length	21 km (13 mi)
Existed	1974–present
Major junctions
West end	RN14 in Cergy
East end	A86 in Gennevilliers
Location
Country	France
Highway system
Roads in France Autoroutes Routes nationales

The autoroute A15 is an autoroute in the western suburbs of Paris, France.

The motorway starts at Gennevilliers in Hauts-de-Seine and ends in Cergy-Pontoise in Val d'Oise. The A15 was built to relieve the congested RN14 between Paris and the Cergy-Pontoise new town. The A15 is operated by the Île-de-France Council. The motorway is 22 km (14 mi) in length and has no tolls The A15 serves Gennevilliers, Argenteuil, Pierrelaye in Eragny, Saint-Ouen-l'Aumône and Pontoise.

This article contains a bulleted list or table of intersections which should be presented in a properly formatted junction table. Please consult this guideline for information on how to create one. Please improve this article if you can. (December 2021)

Junction number & name	Westbound exits	Eastbound exits
1	A86, Gennevilliers	A86, Gennevilliers
2	RN311, Argenteuil, Épinay-sur-Seine, Bezons	RN311, Argenteuil, Épinay-sur-Seine, Bezons
3	A115
4	RN14, Franconville	RN14, Franconville
5  La Patte d'Oie d'Herblay	RN14, Herblay	RN14, Herblay
5.1	RN14, Beauchamp	RN14, Beauchamp
Aire de service de Cergy-Pontoise
6		RN14, Pierrelaye
7	RN184, Eragny-sur-Oise, Saint-Ouen-l'Aumône	RN184, Eragny-sur-Oise, Saint-Ouen-l'Aumône
8		RD984 Rue Guichard/Avenue de Verdun, Saint-Ouen-l'Aumône
9	Boulevard du Port, Cergy	Boulevard du Port, Cergy
10	RD922/RD915 Boulevard de la Viosne, Cergy	RD922/RD915 Boulevard de la Viosne, Cergy
11	Puiseux-Pontoise, Osny	Puiseux-Pontoise, Osny
12	Puiseux-Pontoise	Puiseux-Pontoise
13	Puiseux-Pontoise

• (in French) A15 autoroute in Saratlas