Revierderby

The Revierderby (pronounced) is the name given to any association football match between two clubs in the Ruhr region – also known in German as the , a contraction of Bergbaurevier (mining area) – in North Rhine-Westphalia, but in most cases it refers to the derby between two most historically successful clubs from the region: Borussia Dortmund and FC Schalke 04. Outside Germany, it is often referred to as the Ruhr derby.

A local derby between other Ruhr teams (for example VfL Bochum, MSV Duisburg, or Rot-Weiss Essen) is often called a kleines Revierderby (minor Revier derby).

It is considered the greatest rivalry in German football.