Aalen Hauptbahnhof is a junction on the Stuttgart-Bad Cannstatt–Nördlingen railway from Stuttgart to Nördlingen and the Aalen–Ulm railway from Ulm. The station is located 200 metres northeast of the historic old town (Altstadt) of Aalen in the German state of Baden-Württemberg. It is classified by Deutsche Bahn as a category 3 station. Aalen station was renamed a Hauptbahnhof at the timetable change on 11 December 2016.

The Stuttgart-Bad Cannstatt–Nördlingen railway is a main line in Baden-Württemberg and Bavaria, Germany. It branches off the Stuttgart–Ulm railway at Stuttgart-Bad Cannstatt station and runs via Aalen to Nördlingen, where it merges with the Augsburg–Nördlingen railway. Between Bad Cannstatt and Goldshöfe, the line is part of the long-distance inter-regional connection between Stuttgart and Nuremberg. The line has two tracks from Bad Cannstatt to Goldshöfe and the remaining section is single track. The line is fully electrified and the western section from Stuttgart to Schorndorf is part of the Stuttgart S-Bahn.