The European route E314 is a road in Europe and a part of the United Nations International E-road network.

Approximately 125 kilometers (78 mi) long, it connects the Belgian university city of Leuven with Aachen, Charlemagne's capital during the early ninth century, and today a bustling commercial centre in Germany's North Rhine-Westphalia.

Between the end points, the road also serves the industrial city of Genk where Ford once built their Mondeo model.

The Dutch section is noteworthy for the sight of a large chemical plant shortly after crossing the frontier from Belgium.

At the western end of the road Leuven is located in the Dutch speaking region, although in foreign (French, English, German ...) maps or literature "Louvain" (which has never been the city's official name) may still appear.