Saulx-les-Chartreux (French pronunciation: [so le ʃaʁtʁø] ⓘ) is a commune in the Essonne department in the southern suburbs of Paris, France.

It is located 20 kilometres from the center of Paris.

Monks built a monastery in this village during the 11th century, and lived there until the Wars of Religion in 1592, when Condé soldiers came to burn the place.

On 11 July 1973, Varig Flight 820 crashed near the village, just before arriving in Orly airport.

Inhabitants of Saulx-les-Chartreux are known as Salucéens in French.