Thornhill
- Gweru-Thornhill Air Base
- John Cassavetes
- Markham—Thornhill
- Thorn Hill
- Thorn Hill, Tennessee
- Thornhill (Forkland, Alabama)
- Thornhill (Talladega, Alabama)
- Thornhill (album)
- Thornhill (electoral district)
- Thornhill (surname)
- Thornhill College
- Thornhill Lees
- Thornhill School
- Thornhill Secondary School
- Thornhill Trojans
- Thornhill, British Columbia
- Thornhill, Cardiff
- Thornhill, Cumbria
- Thornhill, Derbyshire
- Thornhill, Dumfries and Galloway
- Thornhill, Enoch Mgijima
- Thornhill, Kentucky
- Thornhill, Kouga
- Thornhill, Maple Ridge
- Thornhill, Nova Scotia
- Thornhill, Ontario
- Thornhill, Southampton
- Thornhill, Stirling
- Thornhill, Torfaen
- Thornhill, West Yorkshire
- Thornhill, Wiltshire
