- The Gore
- The Gully
- The Island
- The Maples
- The Rollway
- The Slash
- Thessalon
- Thistle
- Thompsonville
- Thorah Island
- Thorel House
- Thorndale
- Thornloe
- Thornton
- Thornyhurst
- Thorold
- Thorpe
- Three Bridges
- Throoptown
- Thunder Bay
- Thunder Bay
- Thwaites
- Tichborne
- Tilley
- Tillsonburg
- Timmins
- Tioga
- Tiverton
- Toanche
- Tobermory