T
- Tabor
- Tache
- Tachè
- Taggart
- Taits Beach
- Talbot
- Talbotville Royal
- Tamarack
- Tam O'Shanter-Sullivan
- Tamworth
- Tannin
- Tansley
- Tansleyville
- Tapley
- Tapleytown
- Tara
- Taradale
- Tara Siding
- Tarbert
- Tarbutt and Tarbutt Additional
- Tartan
- Tarzwell
- Tashota
- Tate Corners
- Tatlock
- Tatnall
- Taunton
- Tavistock
- Tay
- Taylor Corners
- Tay Ridge
- Tayside
- Tay Valley
- Tecumseh
- Tecumseth Pines
- Teeswater
- Teeterville
- Tehkummah
- Telfer
- Teltaka
- Temagami
- Temagami North
- Temiskaming Shores
- Temperanceville
- Temple Hill
- Tempo
- Tenby
- Tenby Bay
- Tent City
- Terminus
- Terrace Bay
- Terra Cotta
- Terra Nova
- Terra View Heights
- Teston
- Teviotdale
- Thaddeus
- Thames Centre
- Thamesford
- Thames River Siding
- Thames Road
- Thamesville
- The Archipelago
- The Back Settlement
- The Beach
- The Beaches
- The Blue Mountains
- The Boyne
- The Bush
- The Cache
- The Corra
- The Cottages
- The Crag
- The Dalles 38C
- The Danforth
- The Depot
- Thedford
- The Four Corners
- The Glen
- The Gore
- The Grange
- The Gully
- The Island
- The Maples
- The Meadows
- The Moorings
- The Nation
- The Ninth
- The North Shore
- The Outlet
- The Pines
- The Plains
- Theresa
- The Ridge
- The Rollway
- The Sixth
- The Slash
- Thessalon
- Thessalon 12
- The Tannery
- Thibeault Terrace
- Thistle
- Thistletown-Beaumond Heights
- Thomasburg
- Thommpson
- Thompson Hill
- Thompsons Mills
- Thompsonville
- Thomstown
- Thorah Beach
- Thorah Island
- Thorel House
- Thornbury
- Thorncliffe
- Thorncliffe Park
- Thorndale
- Thorne
- Thorner
- Thornhill
- Thornlea
- Thornloe
- Thornton
- Thornton Woods
- Thornyhurst
- Thorold
- Thorold South
- Thorpe
- Thrasher's Corners
- Three Bridges
- Thresher Corners
- Throoptown
- Thunder Bay
- Thunder Bay, Unorganized
- Thunder Beach
- Thwaites
- Tichborne
- Tilbury
- Tilden Lake
- Tillsonburg
- Timagami Lodge
- Timiskaming, Unorganized, East Part
- Timiskaming, Unorganized, West Part
- Timmins
- Tincap
- Tinkerville
- Tintern
- Tiny
- Tioga
- Tionaga
- Tip Top Spur
- Tiverton
- Toanche
- Tobacco Lake
- Tobermory
- Tobin Island
- Toimela
- Toledo
- Tollgate
- Tolmaville
- Tolmies Corners
- Tolsmaville
- Tomelin Bluffs
- Tomiko
- Tom Longboat Corners
- Tomstown
- Tondern
- Topcliff
- Tophet
- Topping
- Tormore
- Toronto
- Toronto Islands
- Tory Hill
- Tottenham
- Townsend
- Townsend Centre
- Toyes Hill
- Trafford
- Tralee
- Tramore
- Trapper's Landing
- Trautrim Subdivision
- Traverse Landing
- Traverston
- Treadwell
- Trecastle
- Trembley
- Trent Hills
- Trent Lakes
- Trenton
- Trent River
- Trevelyan
- Trinity
- Trinity-Bellwoods
- Triple Bay Park
- Tripoli
- Trout Creek
- Trout Lake
- Trout Mills
- Trowbridge
- Troy
- Troy, Hamilton Division
- Trudeau
- Tuam
- Tubbs Corners
- Tudor and Cashel
- Tuftsville
- Tullamore
- Tunis
- Tunnel
- Tupperville
- Turbine
- Turin
- Turkey Point
- Turners
- Turners Corners
- Turnerville
- Turriff
- Turtle
- Turtle Lake
- Tuttles Hill
- Tweed
- Tweedside
- Twelve O'Clock Point
- Twin Elm
- Twin Falls
- Twin Lakes
- Twin Oats
- TWN Winners Circle
- Two Mile Corner
- Two O'Clock
- Tyendinaga
- Tyendinaga Mohawk Territory
- Tyneside
- Tyotown
- Tyranite
- Tyrconnell
- Tyrolean Village
- Tyrone
- Tyrrell
