Bannwil railway station (Bahnhof Bannwil) is a railway station on the metre-gauge line LangenthalâÂÂOensingen at Bannwil, canton of Bern, Switzerland. It was opened in 1907 by the Langenthal-Jura-Bahn. The line is currently operated by Aare Seeland mobil (ASM). The original station building with its goods shed is in the architectural inventory of the canton of Bern.