This is a list of lakes of Ontario beginning with the letter C.
Cab–Cam Cab Lake Caba Lake Cabin Lake (Raimbault Township, Algoma District) Cabin Lake (Rawlinson Creek, Kenora District) Cabin Lake (Joynt Township, Thunder Bay District) Cabin Lake (Sturgeon River, Kenora District) Cabin Lake (Kawartha Lakes) Cabin Lake (Lurch River, Thunder Bay District) Cabin Lake (Cochrane District) Cabin Lake (St. Ignace Island, Thunder Bay District) Cabin Lake (Wawa) Cable Lake (Thunder Bay District) Cable Lake (Kenora District) Caboose Lake Cabot Lake Cache Lake (Sudbury District) Cache Lake (Rainy River District) Cache Lake (Lecours Township, Thunder Bay District) Cache Lake (Canisbay Township, Nipissing District) Cache Lake (West Nipissing) Cache Lake (Kenora District) Cache Lake (Lookout River, Thunder Bay District) Cache Lake (McLeod Lake, Thunder Bay District) Cachege Lake Cadawaja Lake Cadden Lake (Parry Sound District) Cadden Lake (Sudbury District) Caddy Lake Cadman Lake Cadre Lake Caesar Lake Cahill Lake Caibaiosai Lake Cain Lake (Caribou River, Rainy River District) Cain Lake (Oriana Lake, Rainy River District) Cain Lake (Muskoka District) Cairn Lake Cairngorm Lake Cairo Lake Caithness Lake Cal Lake Calabogie Lake Calais Lake Calamity Lake Calbeck Lake Calcite Lake (Thunder Bay District) Calcite Lake (Timiskaming District) Calder Lake (Rainy River District) Calder Lake (Kenora District) Caldwell Lake (Rainy River District) Caldwell Lake (Thunder Bay District) Caldwell Lake (Lanark County) Caledon Lake Caley Lake Calf Lake (Sudbury District) Calf Lake (Kenora District) Calhoun Lake Caliper Lake Call Lake Calladine Lake Callaghan Lake (Renfrew County) Callaghan Lake (Rainy River District) Callahan Lake Callery Lake Callinan Lake Calm Lake (Rainy River District) Calm Lake (Nipissing District) Calong Lake Calpin Lake Calstock Lake Calumet Lake Calverley's Pond Calvert Lake (Kenora District) Calvert Lake (Thunder Bay District) Calvert Lake (Cochrane District) Calvin Lake Cam Lake (Kenora District) Cam Lake (Sudbury District) Camden Lake Camel Lake (Frontenac County) Camel Lake (Muskoka District) Camel Lake (Sudbury District) Camel Lake (Thunder Bay District) Camel Lake (Rainy River District) Camel Read Lake Camelot Lake Cameo Lake Cameron Lake (Brudenell, Lyndoch and Raglan) Cameron Lake (Algoma District) Cameron Lake (Cameron Creek, Thunder Bay District) Cameron Lake (Cameron Creek, Kenora District) Cameron Lake (Sproule Township, Nipissing District) Cameron Lake (Umbach Township, Kenora District) Cameron Lake (Kawartha Lakes) Cameron Lake (Greater Sudbury) Cameron Lake (Eagle River, Thunder Bay District) Cameron Lake (Greater Madawaska) Cameron Lake (Nairn and Hyman) Cameron Lake (West Nipissing) Cameron Lake (Hardwick Township, Thunder Bay District) Cameron Lake (Bruce County) Camerons Lake Cameroon Lake Cammack Lake Camp 14 Lake Camp 36 Lake Camp Eleven Lake Camp Five Lake Camp Forty One Lake Camp Four Lake Camp Island Lake Camp Lake (Tagouche Creek, Thunder Bay District) Camp Lake (Gour Township, Kenora District) Camp Lake (Creelman Township, Sudbury District) Camp Lake (Greater Sudbury) Camp Lake (Muskoka District) Camp Lake (Haliburton County) Camp Lake (Hasson Lake, Thunder Bay District) Camp Lake (The North Shore) Camp Lake (Frechette Township, Sudbury District) Camp Lake (Haycock Township, Kenora District) Camp Lake (Huffman Township, Sudbury District) Camp Lake (Timmins) Camp Lake (Elliot Lake) Camp Lake (Houtari Township, Algoma District) Camp Lake (Munro Township, Cochrane District) Camp Lake (Frontenac County) Camp Lake (Kashabowie River, Thunder Bay District) Camp Lake (Nipissing District) Camp Lake (Shelley Township, Sudbury District) Camp Lake (Ivanhoe Township, Sudbury District) Camp Nine Lake (Nipissing District) Camp Nine Lake (Sudbury District) Camp One Lake Camp Seven Lake Camp Six Lake Camp Ten Lake Camp Three Lake Camp Two Lake (Sudbury District) Camp Two Lake (Rainy River District) Campbell Lake (Sanborn Township, Cochrane District) Campbell Lake (Nipissing District) Campbell Lake (St.-Charles) Campbell Lake (Rainy River District) Campbell Lake (Parry Sound District) Campbell Lake (Deans Township, Sudbury District) Campbell Lake (Clifford Township, Cochrane District) Campbell Lake (Halliday Township, Sudbury District) Campbell Lake (Lennox and Addington County) Campbell Lake (Campbell Creek, Thunder Bay District) Campbell Lake (Stover Township, Sudbury District) Campbell Lake (Goodfellow Township, Thunder Bay District) Campbellville Pond Campcot Lake (Thunder Bay District) Campcot Lake (Haliburton County) Camper Lake Campfire Lake (Kenora District) Campfire Lake (Thunder Bay District) Campground Lake Camphouse Lake Camping Lake Campover Lake Camproad Lake Campstool Lake Camptwo Lake Campus Lake Camrose Lake
Can–Cay Can Lake Can Opener Lake Canada Jay Lake Canadensis Lake Canal Lake (Kawartha Lakes) Canal Lake (Rainy River District) Canard Lake Canary Lake Cancer Lake Candide Lake Candle Lake Candler Lake Candybar Lake Cane Lake Canis Lake Canisbay Lake Canister Lake Canna Lake Cannibal Lake Canniff Lake Canning Lake (Parry Sound District) Canning Lake (Haliburton County) Cannon Lake (Porcus Lake, Kenora District) Cannon Lake (Gitche River, Kenora District) Cannon Lake (Hastings County) Cannon Lake (Thunder Bay District) Canoe Lake (Barnard Creek), in northwest Thunder Bay District Canoe Lake (The North Shore), in Algoma District Canoe Lake (Greater Madawaska), in Renfrew County Canoe Lake (Parry Sound District) Canoe Lake (Kenora District) Canoe Lake (Frontenac County) Canoe Lake (Sudbury District) Canoe Lake (Lennox and Addington County) Canoe Lake (Timiskaming District) Canoe Lake (Scarfe Township), in Algoma District Canoe Lake (Nipissing District) Canoe Lake (Madawaska Valley), in Renfrew County Canoe Lake (Syine Township), in geographic Syine Township, Thunder Bay District Canoeshed Lake Canon Lake (Tamarack Lake, Thunder Bay District) Canon Lake (GTP Block 7 Township, Thunder Bay District) Canonto Lake Canterbury Lake Canthook Lake (Hoey Township, Sudbury District) Canthook Lake (Ellis Township, Sudbury District) Canthook Lake (Thunder Bay District) Cantin Lake (Algoma District) Cantin Lake (Cochrane District) Cantin Lake (Parry Sound District) Cantley Lake Canton Lake Cantrill Lake Canty Lake Canvasback Lake Canyon Lake (Kenora District) Canyon Lake (Sudbury District) Canyon Lake (Timiskaming District) Canyon Lake (Rainy River District) Canyon Lake (Algoma District) Cap Lake (Sudbury District) Cap Lake (Nipissing District) Capee Lake Capella Lake Capin Lake Capper Lake Capre Lake Capricornus Lake Capsell Lake Captain Lake Captain Tom Lake Captains Lake Capton Lake Caput Lake Car Lake (Rainy River District) Car Lake (Timiskaming District) Car Lake (Kenora District) Carafel Lake Caragana Lake Caramat Lake Carcajou Lake Carcass Lake Card Lake (Hastings County) Card Lake (Kenora District) Carder Lake Cardiff Lake Cardinal Lake Cardinalis Lake Cards Lake Cardwell Lake Carew Lake Carey Lake Carfrae Lake Cargill Lake Cargill Mill Pond Cariad Lake Carib Lake Cariboo Lake Caribou Lake (Smellie Township, Kenora District) Caribou Lake (Plummer Additional) Caribou Lake (Cache Creek, Kenora District) Caribou Lake (Juillette Township, Blind River) Caribou Lake (Cochrane District) Caribou Lake (Willow River, Thunder Bay District) Caribou Lake (North Bay) Caribou Lake (Bent Creek, Kenora District) Caribou Lake (Pickerel Lake, Kenora District) Caribou Lake (Timmermans Township, Blind River) Caribou Lake (Boys Township, Kenora District) Caribou Lake (Lehman Township, Algoma District) Caribou Lake (Shuniah) Caribou Lake (Abraham Township, Algoma District) Caribou Lake (Sudbury District) Caribou Lake (Caribou River, Thunder Bay District) Caribou Lake (Simpson Island, Thunder Bay District) Caribou Lake (Temagami) Caribou Lake (Duncan Township, Algoma District) Caribou Throat Lake Caribus Lake Carillon Lake Carkner Lake Carl Lake (Algoma District) Carl Lake (Sudbury District) Carl Lake (Brothers Township, Thunder Bay District) Carl Lake (Kawashkagama River, Thunder Bay District) Carl Wilson Lake Carlbom Lake Carleton Lake Carling Lake (Kenora District) Carling Lake (Cochrane District) Carlisle Pond Carlo Lake Carlotta Lake Carlson Lake (Cochrane District) Carlson Lake (Thunder Bay District) Carlton Lake Carlyle Lake (Cochrane District) Carlyle Lake (Sudbury District) Carman Lake (Cochrane District) Carman Lake (Algoma District) Carmen Lake (Parry Sound District) Carmen Lake (Sudbury District) Carmen Lake (Timiskaming District) Carmichael Lake (Kenora District) Carmichael Lake (Cochrane District) Carmichael Lake (Sudbury District) Carnahan Lake Carney Lake Carnilac Lake Caro Lake Carol Lake Caroline Lake Caron Lake (Kenora District) Caron Lake (Thunder Bay District) Carp Lake (Algoma District) Carp Lake (Kawartha Lakes) Carp Lake (Rainy River District) Carpenter Lake (Nipissing District) Carpenter Lake (Kenora District) Carpenter Lake (Morin Township, Algoma District) Carpenter Lake (Tronsen Township, Algoma District) Carpet Lake Carre Lake Carrick Lake Carrie Lake Carriere Lake Carrigan Lake Carrington Lake Carroll Lake (Kenora District) Carroll Lake (Lennox and Addington County) Carrot Lake Carruthers Lake Carry Lake Carrying Lake Carscallen Lake Carson Lake (Bruce County) Carson Lake (Algoma District) Carson Lake (Thunder Bay District) Carson Lake (Renfrew County) Carson Lake (Hastings County) Carson Lake (Parry Sound District) Carstens Lake Carswell Lake Cart Lake Cartan Lake Carter Lake (Renfrew County) Carter Lake (Parry Sound District) Carter Lake (Manitoulin District) Carter Lake (Algoma District) Carter Lake (Kenora District) Cartier Lake (Sudbury District) Cartier Lake (Renfrew County) Carty Lake Carver Lake Cascade Lake (Lamport Township, Thunder Bay District) Cascade Lake (Cascade River, Thunder Bay District) Cascaden Lake Cascanette Lake Casey Lake (Nipissing District) Casey Lake (Ottawa) Casgrain Lake Cashel Lake (Hastings County) Cashel Lake (Nipissing District) Cashen Lake (Parry Sound District) Cashen Lake (Algoma District) Casino Lake Cask Lake Caskill Lake Casper Lake Casque Lake Cass Lake Cassadaga Lake Casselman's Lake Cassels Lake Cassidy Lake (Muskoka District) Cassidy Lake (Algoma District) Casson Lake Castellar Lake Castle Lake (Castle Creek, Thunder Bay District) Castle Lake (Hardwick Township, Thunder Bay District) Castlebar Lake Castleman Lake Castlewood Lake Castor Lake (Eldorado Creek, Kenora District) Castor Lake (Eyapamikama Lake (Kenora District) Castor Lake (Nipissing District) Castor Lake (Thunder Bay District) Castor Ponds Castoroil Lake Castra Lake Casummit Lake Caswell Lake (Greater Sudbury) Caswell Lake (Sudbury District) Caswell Lake (Timiskaming District) Cat Lake (Nipissing District) Cat Lake (Roosevelt Township, Sudbury District) Cat Lake (Parry Sound District) Cat Lake (Algoma District) Cat Lake (Umbach Township, Kenora District) Cat Lake (Haliburton County) Cat Lake (Cavell Township, Sudbury District) Cat Lake (Cat River, Kenora District) Cat Lake (Killarney) Cataract Lake Catastrophe Lake Catawba Lake Catchacoma Lake Catcher Lake Caterpillar Lake (Kenora District) Caterpillar Lake (Rainy River District) Catfish Lake (Nipissing District) Catfish Lake (Algoma District) Catfish Lake (Parry Sound District) Catharine Lake Catherine Lake (Thunder Bay District) Catherine Lake (Kenora District) Cathrine Lake Cathro Lake Cathy's Lake Catlonite Lake Cattral Lake Cauchon Lake Caufield Lake Cauley Lake Cauliflower Lake Caulkin Lake Caution Lake Cavalary Lake Cavanagh Lake Cavano Lake Lac la CaveLac la Cave Cave Lake (Manitoulin District) Cave Lake (Sudbury District) Cavell Lake (Thunder Bay District) Cavell Lake (Sudbury District) Cavendish Lake Cavern Lake Cavers Lake (Yesno Township, Thunder Bay District) Cavers Lake (Cavers Creek, Thunder Bay District) Caviar Lake Cawanogami Lake Cawdron Lake Cawing Lake Cawston Lakes Caya's Lake