Rousset (French pronunciation: [ʁusɛ]; Occitan: Rosset) is a commune in the Bouches-du-Rhône department in southern France close to Aix-en-Provence.

Although Rousset can be traced back to the Romans, the first written mention comes in a 1050 document, under the name of "Rosselun" or "roscetum rosetum".

[3] In the Middle Ages, a castle as well as a church and chapels were built, as dwellings increased.

[3] In the 15th century, it belonged to Guillaume de Littera (1371-1452).

[3] It is now home to a semiconductor fab and research center of STMicroelectronics and until 2014 also of another fab of LFoundry [de] (originally set up by Atmel) The fourth Croix de Provence on the Montagne Sainte-Victoire was erected in 1875, on the initiative of the parish priest of Rousset, Father Meissonnier, to ward off two evils: smallpox and the aftermath of the Franco-Prussian war of 1870.