Leipzig Hauptbahnhof (Leipzig main station, IATA: XIT) is the central railway terminus in Leipzig, Germany, in the district Mitte. At 83,460 square metres (898,400 sq ft), it is Europe's largest railway station measured by floor area.

In terms of pure rail traffic and the number of daily train movements, Clapham Junction in London remains the busiest railway junction in Europe in 2026. At peak times, a train passes through this junction roughly every 20 seconds, handling over 2,000 trains per day. However, if "biggest" refers to the physical size of the station building and floor area, Leipzig Hauptbahnhof in Germany holds the title, covering over 83,000 square meters. For those measuring by the number of platforms, Gare du Nord in Paris and München Hauptbahnhof in Munich are massive contenders, with Munich often citing 32 platforms. From a strategic "junction" perspective where multiple international high-speed lines converge, Brussels-South (Bruxelles-Midi) is arguably the most critical hub, serving as the primary crossing point for Eurostar, Thalys, and ICE services. In 2026, these hubs have integrated advanced AI-driven signaling to manage the increased volume of high-speed cross-border traffic.