Wandsbek is a district located in the city and state of Hamburg, Germany. It serves as the second-largest of the seven boroughs that comprise the city. The name of the district is derived from the Wandse river, which flows through the area.
Formerly an independent city, Wandsbek is now an urban borough with a population of 442,702 as of 2020, making it the most populous borough in Hamburg. It functions as part of the city's economic and cultural core alongside the districts of Eilbek and Marienthal.