Aubagne (French: [obaɲ]; Occitan: Aubanha according to the classic norm or Aubagno according to the Mistralian norm) is a commune in the southern French department of Bouches-du-Rhône. In 2020, the commune was awarded three flowers by the National Council of Towns and Villages in Bloom in the Competition of cities and villages in Bloom.

Aubagne is located in the Huveaune Valley and surrounded by the mountain ranges of Garlaban with Sainte-Baume to the north and 17 km (11 mi) east of Marseille. Aubagne was the main city of the former Agglomeration community of Pays d'Aubagne et de l'Étoile; it has been part of the Aix-Marseille-Provence Metropolis since 2016. It is the sixth largest city of Bouches-du-Rhône by population.

It is the main producer of Santon figurines and also hosts many cultural events each year. The Foreign Legion has its headquarters in Aubagne. Public transport has been free at the point of use since the year 2000.

Access to the commune is by the A50 autoroute from Marseille which continues south to Toulon. The A501 and A52 autoroutes branch off the A50 in the commune and merge to go north to Aix-en-Provence. Numerous departmental roads go through the commune including: the D96 which goes north to Roquevaire, the D2 which goes east to Gémenos, the D8N which comes from Marseilles and goes south-east to Cuges-les-Pins, the D41E which goes south to Cassis, and many other connecting roads within the commune. There are several smaller towns and villages in the commune apart from the main town: Les Arnauds, Les Grands Mellets, Pinchon, La Martelle, L'Agrie, La Coueste, La Thuiliere, and Font de Mai. A large proportion of the commune is urban with mountainous terrain to north and south

The main railway from Marseille passes through the commune splitting into two lines - one going north-west and one going south with a station in the town.

The river Huveaune flows through the commune from the east flowing west into the Mediterranean Sea at Prado beach in the 8th Arrondissement in Marseille.

Aubagne was the first commune in France to be completely surrounded by autoroutes: the A50 autoroute Marseille-Toulon, the A52 autoroute to Aubagne-Aix-en-Provence, and the connecting motorway A501.

Regional TER trains operated call at the Gare d'Aubagne railway station, linking the city with Marseille and Toulon. Local public transport in the city, operated under the Lignes de l'agglo brand, is provided by a network of buses and, since 2014, a single 2.8-kilometre (1.7-mile) tram line with seven stops between the railway station and Le Charrel. This project has been criticized, as it is not common for a city of its size. Construction started in 2012 and the first phase opened on 1 September 2014, with service provided by eight Alstom Citadis Compact trams. An eastern extension of this line to Les Paluds, as well as a second line to La Penne-sur-Huveaune in the west, has been planned, with a long-term project to link the network to the Marseille tramway.