Floridsdorf is the 21st district of Vienna, Austria, situated north of the Danube river. It was formed by the incorporation of several former villages, including Floridsdorf, Donaufeld, Jedlesee, Leopoldau, Stammersdorf, Strebersdorf, and Groß-Jedlersdorf.
As of 2025, the district has a population exceeding 189,000 residents, making it one of the fastest-growing areas in the city and Vienna's third most populous district. The area is characterized by a combination of urban infrastructure and significant green spaces, including parks, vineyards, and historical architecture.