Frederiksberg is a part of the Capital Region of Denmark. It is formally an independent municipality, Frederiksberg Municipality, separate from Copenhagen Municipality, but both are a part of the City of Copenhagen. It occupies an area of less than 9 km2 and had a population of 103,192 in 2015.

Frederiksberg Kommune is a municipality on the island of Zealand (Sjælland) in Denmark. Part of the Capital Region of Denmark and the city of Copenhagen, it is surrounded by Copenhagen Municipality. The municipality, co-extensive with its seat, covers a total area of 8.71 km2 according to the Municipal Key Figures and has a population of 104,664 making it the smallest municipality in Denmark area-wise, the seventh most populous, and the most densely populated. Its mayor is Michael Vindfeldt from the Social Democrats serving from 1 January 2022.