The German Cycling Network (German: Radnetz Deutschland) is the national cycling route network of Germany. There are currently 12 such long-distance cycling routes, called D-Routes (the "D" stands for "Deutschland’" i.e. Germany) criss-crossing the German nation and these were established mainly to promote bicycle tourism.
Part of the German Nationaler Radverkehrsplan (National Cycling Plan), the project to establish the German Cycling Network ran over a 10 year period, from 2002 to 2012.