The A55 autoroute is a free motorway in southern France. It is 36.7 kilometres (22.8 mi) long.

The road starts at Marseille at La Joliette and ends to the west of Martigues where it becomes the N568 towards Arles and Nîmes.

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)

• 01 (Vieux-Port) Towns served: Vieux-Port
• 02 (Port) Towns served: Port with regular Ferry services to Corsica and Algeria
• 03 Exchange A55-A557 Junction with the A557 to the A7 and Aix-en-Provence
• 04 (La Madrague) La Madrague
• 05 (L'Estaque/Le Rove) Towns served: L'Estaque, Le Rove
• 06 (L'Estaque-Nord) Towns served: L'Estaque, Saint-Antoine
• Junction A7-A55 Junction with the A7
  • Service Area: Rebuty/La Nerthe
• 07 (Marignan) Towns served: Marignane, Gignac-la-Nerthe, Le Rove
• 08 (Ensuès-la-Redonne) Towns served: Ensuès-la-Redonne, Carry-le-Rouet, Sausset-les-Pins
• 09 (La Mède-Est) Towns served: La Mède, Châteauneuf-les-Martigues
• 10 (La Mède-Est) Towns served: La Mède
• 11 (Martigues-Est) Towns served: Martigues
• 12 (Martigues-Sus) Towns served: Martigues, Lavéra
• 13 (Martiques) Towns served: Martigues D5 towards Saint-Mitre-les-Remparts and Istres
• End of autoroute which merges into the N568 towards Arles, Nîmes and Montpellier.

The first section was opened in 1972. The last section was completed connecting this junction to the Vieux-Port of Marseille in 1989.

This motorway will be extended towards Arles by upgrading the N568 over the Plaine de la Crau. No date has been scheduled as yet, only a by-pass for Port-de-Bouc which is currently being evaluated.

• A55 Motorway in Saratlas