The Rugby-Regionalliga is the third-highest level of Germany's Rugby union league system, organised by the German Rugby Federation. Its set below the 2nd Rugby-Bundesliga. It is organised in eight regional divisions.
Since 2010, the Regionalliga is only the fourth level of play in Southern Germany, since the interception of the 3rd Liga South/West, which covers the same states as the 2nd Rugby-Bundesliga South/West above it.