Kalma station () is a railway station in Kalma-dong, an industrial neighbourhood in the eastern part of Wà Ânsan city, Kangwà Ân province, North Korea, on the Kangwà Ân Line of the Korean State Railway. It is also the start of the Wà Ânsanhang Line to Wà Ânsan Port.
Kalma station handles freight traffic destined for and shipped from WÃ Ânsan city, and serves several large industries, including the 4 June Rolling Stock Works, which is one of the DPRK's largest railway equipment factories.
The station, along with the rest of the former Kyà Ângwà Ân Line, was opened by the Chosen Government Railway on 16 August 1914.