C
- Cahore
- Caintown
- Cairngorm
- Caistor Centre
- Caistor Corners
- Caistorville
- Calderwood
- Caledonia
- California
- Caliper Lake
- Callander
- Callowood
- Calton
- Calvin Park
- Cambray
- Camden East
- Camelot Beach
- Cameron
- Cameron
- Camerons Point
- Camlachie
- Campbell Maxwell Front
- Campbells Beach
- Campbells Corners
- Campbellton
- Campbelltown
- Campbellvale
- Campden
- Camperdown
- Camp Kagawong
- Canal
- Canboro
- Candyville
- Canfield
- Canfield Junction
- Cannamore
- Cannifton
- Canning
- Cape Chin
- Cape Chin North
- Cape Chin South
- Cape Crocker Hunting Grounds First Nations Reserve 60B
- Cape Croker
- Cardiff
- Cardinal
- Cargill
- Cargill Siding
- Carholme
- Carley
- Carleys Corner
- Carling
- Carlingford
- Carlisle
- Carlow
- Carlow/Mayo
- Carlsruhe
- Carlton Park
- Carlyon
- Carmanville
- Carmel
- Carmunnock
- Carnarvon
- Carr's Landing
- Carrying Place
- Carthage
- Carthew
- Carthew Bay
- Cartwright Point Settlement
- Cashions Glen
- Cashtown
- Cashtown Corners
- Cass Bridge
- Cassel
- Castle Glen Estates
- Caswell's Beach
- Cataraqui
- Catchacoma
- Catchacoma Lake
- Cathage
- Cavan
- Cavan-Monaghan
- Cawaja Beach
- Cayuga
- Cecebe
- Cedar Bay
- Cedar Beach
- Cedar Croft
- Cedar Glen
- Cedar Grove
- Cedarhurst Park
- Cedar Island
- Cedar Lake
- Cedarmont Beach
- Cedar Mount
- Cedar Nook
- Cedar Point
- Cedar Springs
- Cedar Valley
- Cedar Valley
- Cedar Village
- Cedarville
- Cedarville
- Central Elgin
- Central Huron
- Centralia
- Central Plympton Lakeshre
- Centre
- Centre Dummer
- Centre Hastings
- Centre Inn
- Centreview
- Centreville
- Centreville
- Centreville
- Centre Wellington
- Centurion
- Ceylon
- C.F.B. Kingston
- C.F.B. Trenton
- Chaffeys Locks
- Chambers Corners
- Chandos Lake
- Chantler
- Chantry
- Chapman's Landing
- Charing Cross
- Charlemont
- Charleston
- Charleville
- Chase Corners
- Chatham
- Chatham-Kent
- Chatsworth
- Chatterton
- Chaudiàre Dam
- Cheapside
- Cheddar
- Cheeseborough
- Chemong Heights
- Chemong Park
- Chenal Ecarte
- Chepstow
- Cherry Grove
- Cherry Lane Estates
- Cherry Valley
- Chesley
- Chesterfield
- Chesterville
- Chetwynd
- Chief's Point Indian Reserve No. 28
- Chikopi
- Childs Mines
- Chipewas of The Thames First Nation 42
- Chippawa
- Chippawa Hill
- Chippewa
- Chippewa Island Indian Reserve
- Chiselhurst
- Chisholm's Mills
- Christian Island
- Christian Island 30
- Christian Island 30A
- Christian Valley
- Christie Beach
- Christina
- Churchill
- Churchill Heights
- Clachan
- Clanbrassil
- Clandeboye
- Clare
- Clarina
- Clarke's Corners
- Clarksburg
- Clarks Church
- Clavering
- Clay Hills
- Clear Creek
- Clear Lake
- Clearview
- Clearville
- Clearwater
- Clearwater Bay
- Clearwater Beach
- Clifford
- Clinton
- Cloverdale
- Cluny
- Coatsworth
- Coatsworth Station
- Cobble Hill
- Coboconk
- Codes Corner
- Codes Corners
- Cody's Corners
- Coe Hill
- Cognashene
- Colchester
- Coldstream
- Coldwater
- Colebrook
- Colemans
- Colenso
- Cole Wharf
- Colgan
- Colinville
- Collingwood
- Collins Bay
- Colpoy's Bay
- Colquhoun
- Colwell
- Comber
- Comet
- Commanda
- Concord Point
- Conestoga Estates
- Conestoga Lake
- Conestogo
- Coningsby
- Conn
- Connaught
- Connaught Shore
- Connor
- Conroy
- Consecon
- Constance
- Conway
- Cooks Mills
- Cookstown
- Coopers Falls
- Cooper's Trailer Park
- Copeland's Landing
- Copenhagen
- Copperhead
- Copperkettle
- Corbett
- Corbyville
- Cordova Mines
- Corinth
- Cornell
- Cornwall Centre
- Cornwall Island
- Corsons
- Corunna
- Corwhin
- Cosy Cove
- Cotswold
- Cottam
- Cottesloe
- Coulson
- Coulson's Hill
- Coulters Hill
- Courtland
- Courtright
- Coutnac Beach
- Cove Beach
- Cowal
- Cowan's Bay
- Cow Island
- Coyle
- Cozy Corners
- Craighurst
- Craigleith
- Craigvale
- Crampton
- Cranberry Island
- Cranbrook
- Cranston
- Crathie
- Crawford
- Crawford's Grove
- Crediton
- Credit River
- Creditville
- Creek Bank
- Creemore
- Creighton
- Crescent Bay
- Crescent Harbour
- Crescent Park
- Cresswell
- Cressy
- Crewe
- Crieff
- Crinan
- Crofton
- Cromar
- Cromarty
- Crooked Bay
- Crookston
- Crosby
- Crosshill
- Crossland
- Crossley Hunter
- Crossley-Hunter
- Croton
- Crowes Landing
- Crow Lake
- Crown Hill
- Croydon
- Cruickshank
- Crysler
- Crystal
- Crystal Beach
- Crystal Rock
- Crystal Springs
- Culloden
- Cultus
- Cumberland Beach
- Cumnock
- Cundles
- Cunningham's Corners
- Curries
- Curry Hill
- Curve Lake
- Curve Lake First Nation 35
- Curve Lake Indian Reserve No. 35A
- Cushendall
