Sumiswald-Grünen railway station is a railway station in the municipality of Sumiswald, in the Swiss canton of Bern. It is an intermediate stop on the standard gauge Ramsei–Huttwil line of BLS AG. Sumiswald-Grünen is the eastern terminus of BLS-operated Bern S-Bahn services; the Dampfbahn Bern heritage railway operates seasonal services over the remainder of the line to Huttwil and Wasen.