Regions of Australia
- Costello Creek
- Cape Cossigny
- Cossigny
- Cossicks Waterhole
- Cossack
- Cosmo Newbery
- Cosmo Newberry Hill
- Corvisart Island
- Corvisart Bay
- Corunna South
- Corunna North
- Corunna Downs
- Corunna
- Corung Creek
- Cortlinye Reservoir
- Cortlinye
- Cortlinye
- Corryton Park
- Corryalgo Spring
- Corrobinnie Hill
- Corroberritarrie Hill
- Corroberra Hill
- Corroberra
- Corringer Well
- Corringer Creek
- Corrigin
- Corrigin
- Corraring Brook
- Corporal Creek
- Coronippie Well
- Coronet Hill
- Coronation Islands
- Corona Bank
- Coromup Creek
- Coroma Well
- Coromandel Valley
- Corolin Brook
- Corny Point
- Corny Point
- Cornish Well
- Mount Cornish
- Mount Cornish
- Cornijup
- Corner Well
- Corner Well
- Corner Well
- Corner Well
- Corner Well
- Corner Hill
- Corner Break
- Corner Bore
- Mount Cornell
- Corneille Island
- Corndori Waterhole
- Cornambie Point
- Cormorant Rock
- Corkwood Waterhole
- Cork Tree Well
- Cork Tree Well
- Cork Tree Well
- Corkscrew Well
- Corkscrew Pass
- Cork Hill
- Cork Creek
- Lake Corinup
- Corinthia
- Corinda Waterhole
- Corinda
- Coria Springs
- Corginojally Well
- Corella Lake
- Corella Creek
- Cordinup River
- Cordingup Creek
- Cordering
- Cordelia Creek
- Cordalia Well
- Cordabina Pool
- Corbingmenna Pool
- Corbett Island
- Corbalup Swamp
- Coramup Hill
- Coramup Creek
- Coralbignie Out Station
- Coral Bay
- Coragina Rock
- Corackerup Creek
- Mount Cora
- Coppudurba Hill
- Coppins Gap
- Coppin Pool
- Coppertop Hill
- Coppermine Creek
- Copperhouse
- Copper Hill
- Copperfield Creek
- Copperdie Hill
- Mount Copley
- Mount Copley
- Copley
- Copeville
- Copeland Island
- Cooyurooparie
- Cooyerdoo Hill
- Cooyeana
- Cootra
- Cootenbrand Well
- Cootarring Rock
- Cootanoorina Hill
- Cootaning Tanks
- Cootamundra Shoal
- Cootamarra
- Cootah Creek
- Coota Coota Pool
- Cooryanna Creek
- Coorungcoorana
- Coorow
- Cooroothoo Well
- Coorooninga Well
- Coorooboogee Well
- Coorongie
- Coorong Channel
- Cooronga
- The Coorong
- Coorlay Ridge
- Coorlay Lake
- Cooriwarri Waterhole
- Cooritta Waterhole
- Cooritta Hill
- Coorinyup Hill
- Coorinjinna Pool
- Coorie Appa Well
- Coori Coori Gillie
- Coorichina Lake
- Cooribin Pool
- Cooria Hill
- Lake Cooreeappa
- Coordooin Pool
- Coor-De-Wandy Hill
- Coor-De-Wandy
- Coorbeelyene Pool
- Coorbeelie Creek
- Coorawarrah Pool
- Coorawalthy Well
- Cooratoula Creek
- Coorathilie Lake
- Coorara Soak
- Coorara Pool
- Coorara Claypan
- Coorara
- Coorancooping
- Cooramarina Creek
- Cooralya Well
- Cooralya
- Coorallyanyuila Well
- Coorakoothara Pool
- Cooraidegel Well
- Cooragoora Well
- Cooragooggine Lake
- Cooracoorawine Pool
- Cooracoolbinja Pool
- Coorabulka
- Coorabie
- Cooraarra Waterhole
- Cooper Island
- Mount Cooperinna
- Cooper Hills
- Cooper Creek
- Cooper Creek
- Cooper Creek
- Mount Cooper
- Mount Cooper
- Coon Well
- Coontlama Well
- Coontharrabilly Pool
- Coonterunah Well
- Coonterunah Pool
- Coontara Waterhole
- Coontapoo
- Coontamurra Creek
- Coonoogoo Well
- Coonnanarrina Pool
- Coonmine Soak
- Coonmalgarra Soak
- Lake Cooninnie
- Coongra Creek
- Coongoo Station
- Coongoodoo Spring
- Coongan Station
- Coongan River
- Coongan Belt Well
- Coongan
- Coondra Coondra Springs
- Coondoo Well
- Coondoondoo Spring
- Coondoon Creek
- Coondool Pool
- Coondle Well
- Coondle
- Coondinna