Oensingen railway station (German: Bahnhof Oensingen) is a railway station in the municipality of Oensingen, in the Swiss canton of Solothurn.

The station is a keilbahnhof.

It is located at the junction of the standard gauge Jura Foot line of Swiss Federal Railways and Oensingen–Balsthal line of Oensingen-Balsthal-Bahn [de].

It is also a terminus of the 1,000 mm (3 ft 3+3⁄8 in) gauge Langenthal–Oensingen line of Aare Seeland mobil.

[1] As of the December 2023 timetable change,[update] the following services stop at Oensingen:[5]