Gesundbrunnen is a locality (Ortsteil) of Berlin in the borough (Bezirk) of Mitte. It was created as a separate entity by the 2001 administrative reform, formerly the eastern half of the former Wedding district and locality. Gesundbrunnen has the highest percentage of non-German residents of any Berlin locality, at 35.1% as of the end of 2008.

Berlin is both a city and one of Germany's federated states. Since the 2001 administrative reform, it has been made up of twelve districts, each with its own administrative body. However, unlike the municipalities and counties of other German states, the Berlin districts are not territorial corporations of public law with autonomous competencies and property, but simple administrative agencies of Berlin's state and city government, the City of Berlin forming a single municipality since the Greater Berlin Act of 1920. Thus they cannot be equated to US or UK boroughs in the traditional meaning of the term.