Arcueil–Cachan (French pronunciation: [aʁkœj kaʃɑ̃]) is a station on RER B of the Réseau Express Régional network, a hybrid suburban commuter and rapid transit line.

The station takes its name from its location near the city of Arcueil and inside the town of Cachan.

The neighboring municipality of Arcueil also has access to Laplace station, further north on line B (towards Paris), which is located on its territory.

In addition, there is an old freight station now used as a siding for certain works equipment or RATP trainsets.

The future Grand Paris Express station will be located under the RER B tracks at an angle close to 90 °.