Regions of Canada
- Third Lake
- Third Lake
- Third Lake
- Third Lake
- Third Lake
- Third Lake Deadwater
- Third Lake Flumes
- Third Lake O'Law
- Third Lake Rip
- Third Lake Thoroughfare
- Third Lake Thoroughfare
- Third Long Pond
- Third Momich Lake
- Third Mustus Lake
- Third Narrows
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Pond
- Third Rapids
- Third Shute Steady
- Third Sister Island
- Third Stillwater
- Third Stillwater
- Third Vault Brook
- Third Vault Falls
- Thirsk Lake
- Thirsty Lake
- Thirteen Gulch
- Thirteen Island Lake
- Thirteen Lake
- Thirteen Mile Creek
- Thirteen Mile Lake
- Thirty Acre Lake
- Thirty Dollar Rapids
- Thirty Eight Lake
- Thirty Fathom Bank
- Thirty-fifth Brook
- Thirty-first Brook
- Thirty Foot Falls
- Thirty Island Lake
- Thirty Lake
- Thirty Lake
- Thirty Lake
- Thirty Mile Coulee
- Thirty Mile Creek
- Thirty Mile Creek
- Thirty Mile Lake
- Thirty Mile Lake
- Thirtymile Range
- Thirtynine Mountain
- Thirty-ninth Brook
- Thirty One Lake
- Thirty-seven Mile Creek
- Thirty Thousand Islands
- Thirty-two Island
- This Lake
- This Man Lake
- This Man's Lake
- Thistle
- Thistle
- Thistle Creek
- Thistle Creek
- Thistle Creek
- Thistle Creek
- Thistle Island
- Thistle Island
- Thistle Island
- Thistle Island
- Thistle Lake
- Thistle Lake
- Thistle Lake
- Thistle Mountain
- Thistle Mountain
- Thistle Passage
- Thistle Reef
- Thistle Rock
- Thistle Shoal
- Thistles Point
- Thistlethwaite Lake
- Thistleton Islands
- Thistletown
- Thletelban Lake
- Thlewiaza River
- Thlewiaza River
- Thlewycho Lake
- Thluicho Lake
- Thoa River
- Thoburn Rock
- Thode
- Thomas
- Thomas
- Thomas Battersby Protected Area
- Thomas Bay
- Thomas Bay
- Thomas Bay
- Thomas Bay
- Thomasberg Lake
- Thomas Bluff
- Thomas Brook
- Thomas Brook
- Thomas Brook
- Thomas Brook
- Thomas Brook
- Thomas Brook
- Thomas Brown Glacier
- Thomasburg
- Thomas Cook Lake
- Thomas Coulee
- Thomas Cove
- Thomas Cove
- Thomas Creek
- Thomas Creek
- Thomas Creek
- Thomas Creek
- Thomas Creek
- Thomas Creek
- Thomas Creek
- Thomas Creek
- Thomas Creek
- Thomas Creek
- Thomas Esker
- Thomas Falls
- Thomas Falls
- Thomas Gulch
- Thomas Head
- Thomas Hill
- Thomas Honey Island
- Thomas Island
- Thomas Island
- Thomas Island
- Thomas Island
- Thomas Island
- Thomas Island
- Thomas Island
- Thomas Islet
- Thomas Johnson Lake
- Thomas Lake
- Thomas Lake
- Thomas Lake
- Thomas Lake
- Thomas Lake
- Thomas Lake
- Thomas Lake
- Thomas Lake
- Thomas Lake
- Thomas Lake
- Thomas Lake
- Thomas Lake
- Thomas Lake
- Thomas Lake
- Thomas Lake
- Thomas Lake
- Thomas Lake
- Thomas Lake
- Thomas Lake
- Thomas Lee Inlet
- Thomas Long Shoal
- Thomas Martin Lake
- Thomas McLeod Lake
- Thomas Meadow Brook
- Thomas Meadows
- Thomas Moore Lake
- Thomas Mountain
- Thomas Narrows
- Thomas Narrows
- Thomas Peak
- Thomas Peninsula
- Thomas Phillips Lake
- Thomas Point
- Thomas Point
- Thomas Point
- Thomas Point
- Thomas Point