Thornhill may refer to:
People
Thornhill (surname)
Artists
Thornhill (band)
Places
Canada
Thornhill, British Columbia
Thornhill, Maple Ridge, British Columbia
Thornhill, Nova Scotia
Thornhill, Ontario
Thornhill (federal electoral district) Thornhill (provincial electoral district) Markham—Thornhill (electoral district)
South Africa
Thornhill, Kouga, Eastern Cape
Thornhill, Enoch Mgijima, Eastern Cape
United Kingdom
Thornhill, Cardiff, Wales
Thornhill, Cumbria, England
Thornhill, Derbyshire, England
Thornhill, Dumfries and Galloway, Scotland
Thornhill, Southampton, England
Thornhill, Stirling, Scotland
Thornhill, Torfaen, Cwmbran, Wales
Thornhill, West Yorkshire, England
Thornhill Trojans, amateur rugby league club, Thornhill, West Yorkshire
Thornhill, Wiltshire, England
Thornhill Lees, Dewsbury, West Yorkshire, England
United States
Thornhill (Forkland, Alabama), a historic plantation listed on the National Register of Historic Places Thornhill (Talladega, Alabama), a historic plantation listed on the National Register of Historic Places Thornhill, Kentucky
Zimbabwe
Gweru-Thornhill Air Base, formerly Rhodesian Air Force Station Thornhill
Other uses
Thornhill (album), 1999 Moxy Früvous album
Thornhill was the name of a play that John Cassavetes and others were developing in 1983, about Eugene O'Neill Thornhill College, Derry, Northern Ireland Thornhill Academy, Sunderland, England Thornhill Community Academy, West Yorkshire, England Thornhill Secondary School, Ontario, Canada