Farum station is an S-train railway station serving the satellite town of Farum north of Copenhagen, Denmark. It is located about 1 km east of the old village Farum, but is the center of the modern Farum, which has grown up around the station.

B is a service on the S-train network in Copenhagen. It runs between Farum and Høje Taastrup and provides stopping services on the S-train system's Farum radia and Tåstrup radial.