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.

Leuven or Louvain is the capital and largest city of the province of Flemish Brabant in the Flemish Region of Belgium. It is located about 25 kilometres east of Brussels. The municipality itself comprises the sub-municipalities of Heverlee, Kessel-Lo, Leuven proper, Wilsele, Wijgmaal and part of Haasrode and Korbeek-Lo. It is the eighth largest city in Belgium, with more than 100,244 inhabitants.