Hornsey is a district of London, England.
Hornsey may also refer to:
Hornsey (electoral division), a former electoral division for the Greater London Council Municipal Borough of Hornsey, until 1965 Hornsey (parish), a parish in the historic county of Middlesex Hornsey (surname), people with the surname Hornsey Hornsey (ward), an electoral ward for the Haringey London Borough Council Hornsey (UK Parliament constituency), a former constituency for the House of Commons of the United Kingdom