Saint-Martin-d'Étampes (French pronunciation: [sɛ̃ maʁtɛ̃ detɑ̃p]) is a railway station in Étampes, Essonne, in the southern suburbs of Paris, France.

The station is served by Paris' express suburban rail system, the RER.

The train services are operated by SNCF.

It was necessary to build this station, as trains could not terminate at Étampes without causing disruption to the Paris–Bordeaux railway.

This Réseau Express Régional article is a stub.