Greater Vienna

Greater Vienna (German: Groß-Wien) is the name given to a greatly enlarged Vienna that incorporates surrounding communities. The first attempts to create a Greater Vienna were made during the Habsburg monarchy. After the Anschluss of Austria into the German Reich in 1938, Vienna was expanded to become the "largest city in the Reich in terms of area".

Today, the term "Greater Vienna" mainly denotes the expanded Vienna that existed during the Nazi era, which was much larger than today's city, as most of these expansions were reversed in 1954 during the Allied occupation. The annexations of the National Socialist era still have an impact on the region's infrastructure today. Within the modern city, some of the district reorganization measures are still in force.