Mjøndalen Station (Norwegian: Mjøndalen stasjon) is located at the village of Mjøndalen in Nedre Eiker, Norway on the Sørlandet Line. Traditionally, this section of railway was regarded as part of the Randsfjorden Line. The station is served by local trains between Kongsberg via Oslo to Eidsvoll operated by Vy. The station was opened in 1866.

Preceding station				Following station
Hokksund	Sørlandet Line			Gulskogen
Preceding station	Local trains			Following station
Hokksund	R12	Kongsberg–Oslo S–Eidsvoll		Gulskogen