The Municipal Borough of Hornsey was a local government district in east Middlesex from 1867 to 1965.

The corporation made two unsuccessful attempts to gain county borough status in 1904 and 1915.

One of the municipal borough's first significant projects was the opening of Hornsey Cottage Hospital in 1910.

Hornsey Town Hall, built in 1933–35 and designed by Reginald Uren, was widely admired for its clean, Modernist style and beautiful detailing, symbolising enlightened local government.

However, since 2004 Haringey Council gradually removed municipal services from the building, and its increasing dereliction caused a local furore.