Hoorn (disambiguation)
Hoorn is a city in North Holland, the Netherlands. Hoorn may also refer to:

Places
 Hoorn, Heerde, Gelderland, Netherlands
 Hoorn, Friesland, Netherlands
 County of Horne, or Hoorn, a county of the Holy Roman Empire in present-day Netherlands and Belgium
 Hoorn Islands, South Pacific islands named after the city of Hoorn

People with the surname
Jordanus Hoorn (1753–1833), Dutch painter
Carol Hoorn Fraser (1930–1991), American figurative artist active in Canada

See also
 Horn (disambiguation) 
 Den Hoorn (disambiguation)
 Van Hoorn, a surname

Dutch-language surnames