Aargau Southern Railway

{{short description|Former railway company in Switzerland}}

{{onesource|date=December 2018}}

{{Infobox company

| name = Aargau Southern Railway

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| industry = Rail transport

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| successor = Swiss Federal Railways

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| defunct = {{End date|1902|1|1|df=y}}

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{{Aargauische Südbahn}}

Aargau Southern Railway ({{langx|de|Aargauische Südbahn}}) is a former railway company in Switzerland. Between 1873 and 1882, the Schweizerische Centralbahn (SCB) and the Schweizerische Nordostbahn (NOB) jointly built a connecting line to the Gotthardbahn. The line was operated by the SCB and ran from Rupperswil to Immensee. Branch lines ran from Wohlen to Bremgarten and from Hendschiken to Brugg.