| Clark Point | Clark Range | Clark Range (berg i Kanada, Alberta) |
| Clark Ridge | Clark Ridge (bergstopp) | Clark Rockefeller |
| Clark Terry | Clark terry | Clark University |
| Clark, Alan | Clark, Andy | Clark, Annie |
| Clark, Barney | Clark, Bennett Champ | Clark, Blake |
| Clark, Brett | Clark, Champ | Clark, Chris |
| Clark, Clarence | Clark, Clarence D. | Clark, Daniel |
| Clark, Darren | Clark, David Worth | Clark, Dick |
| Clark, Edward | Clark, Ellery | Clark, Fred |
| Clark, Gene | Clark, Grahame | Clark, Guy |
| Clark, Helen | Clark, Howard | Clark, Jim |
| Clark, Jimmy | Clark, Joe | Clark, Joetta |
| Clark, John Bates | Clark, John Pepper | Clark, Joseph |
| Clark, Joseph S. | Clark, Kenneth | Clark, Kevin |
| Clark, Laurel | Clark, Lynda | Clark, Mark |
| Clark, Mary Higgins | Clark, Myron H. | Clark, Paul |
| Clark, Petula | Clark, Ramsey | Clark, Sharon |
| Clark, South Dakota | Clark, Spencer Treat | Clark, Stephen |
| Clark, Steve | Clark, Terri | Clark, Tim |
| Clark, Tom C. | Clark, W. H. | Clark, Wendel |
| Clark, Wesley | Clark, William | Clark, William A. |
| Clarkcoma | Clarkcoma bollonsi | Clarkcoma canaliculata |
| Clarkcoma pulchra | Clarke | Clarke (auktor) |
| Clarke Abel | Clarke Boland Big Band | Clarke County |
| Clarke County, Alabama | Clarke County, Georgia | Clarke County, Iowa |
| Clarke County, Mississippi | Clarke County, Virginia | Clarke Glacier |
| Clarke Glacier (berg) | Clarke Glacier (glaciär i Antarktis, lat -68,83, long -66,72) | Clarke Glacier (glaciär i Antarktis, lat -75,40, long 162,08) |
| Clarke Island | Clarke Island (ö i Australien, Tasmanien) | Clarke Island (ö i Kanada, Nunavut) |
| Clarke Island, Nunavut | Clarke MacArthur | Clarke Peters |
| Clarke Range | Clarke Scholes | Clarke Sound |
| Clarke's River | Clarke's three laws | Clarke, Alexander Ross |
| Clarke, Alured | Clarke, Arthur C. | Clarke, Bobby |
| Clarke, Cam | Clarke, Charles | Clarke, Christopher |
| Clarke, Dan | Clarke, Darren | Clarke, Davian |
| Clarke, Eddie | Clarke, Edward Daniel | Clarke, Gilby |
| Clarke, Jack | Clarke, James Paul | Clarke, Jeremiah |
| Clarke, John Hopkins | Clarke, Kenneth | Clarke, Kenny |
| Clarke, Lenny | Clarke, Leon | Clarke, Lerone |
| Clarke, Melinda | Clarke, Michael | Clarke, Mount |
| Clarke, Mount (berg i Antarktis, lat -68,12, long 55,46) | Clarke, Mount (berg i Antarktis, lat -85,08, long 172,30) | Clarke, Ron |
| Clarke, Roy | Clarke, Sarah | Clarke, Stanley |
| Clarke, Susanna | Clarke, Thomas | Clarke, Tom |
| Clarke, Tony | Clarke, Vince | Clarke, Warren |
| Clarke, Yvette | Clarke-Lewis, Eldece | Clarke-Mordaunt-Guthrie |
| Clarkeasia | Clarkeasia parviflora | Clarke’s River |
| Clarkefield | Clarkeia | Clarkeia sabulalis |
| Clarkeifedia monandra | Clarkeinda | Clarkeinda cellaris |
| Clarkeinda gennadii | Clarkeinda pedilia | Clarkeinda pequinii |
| Clarkeinda rubriceps | Clarkeinda trachodes | Clarkella |
| Clarkella nana | Clarkella nana var. siamensis | Clarkella siamensis |
| Clarkemedaljen | Clarkenia | Clarkenia lacertana |
| Clarkes lagar | Clarkes tre lagar | Clarkesville |
| Clarkesville, Georgia | Clarkeulia | Clarkeulia aerumnosa |
| Clarkfield Station | Clarkia | Clarkia affinis |
| Clarkia amoena | Clarkia arcuata | Clarkia biloba |
| Clarkia borealis | Clarkia bottae | Clarkia breweri |
| Clarkia concinna | Clarkia cylindrica | Clarkia davyi |
| Clarkia deflexa | Clarkia delicata | Clarkia dudleyana |
| Clarkia elegans | Clarkia epilobioides | Clarkia exilis |
| Clarkia franciscana | Clarkia gauroides | Clarkia gracilis |
| Clarkia heterandra | Clarkia imbricata | Clarkia jolonensis |
| Clarkia lassenensis | Clarkia lewisii | Clarkia lingulata |
| Clarkia mildrediae | Clarkia modesta | Clarkia mosquinii |
| Clarkia mosquinii subsp. xerophila | Clarkia prostrata | Clarkia pulchella |
| Clarkia pulcherrima | Clarkia purpurea | Clarkia rhomboidea |
| Clarkia rostrata | Clarkia rubicunda | Clarkia rubicunda subsp. blasdalei |
| Clarkia similis | Clarkia speciosa | Clarkia springvillensis |
| Clarkia stellata | Clarkia tembloriensis | Clarkia tenella |
| Clarkia virgata | Clarkia williamsonii | Clarkia xantiana |
| Clarkichthyes bilineatus | Clarkichthys | Clarkichthys bilineatus |
| Clarkina caurina | Clarkinella | Clarkinella canadensis |
| Clarkinella edithae | Clarkior | Clarksburg |
| Clarksburg, Massachusetts | Clarksburg, West Virginia | Clarksdale |
| Clarksdale, Mississippi | Clarkson | Clarkson (auktor) |
| Clarkson (olika betydelser) | Clarkson (samhälle) | Clarkson (udde) |
| Clarkson College of Technology | Clarkson Frederick Stanfield | Clarkson Golden Knights |
| Clarkson Peak | Clarkson Stanfield | Clarkson University |
| Clarkson, David | Clarkson, Jeremy | Clarkson, Kelly |
| Clarkson, Kentucky | Clarkson, Lana | Clarkson, Nebraska |
| Clarkson, Patricia | Clarkson, Punta | Clarkson, Rolf |
| Clarkson, Thomas | Clarkston | Clarkston (ort i Storbritannien) |
| Clarkston, East Renfrewshire | Clarkston, Georgia | Clarkston, Washington |
| Clarkstown | Clarkstown, New York | Clarksville |
| Clarksville, Arkansas | Clarksville, Indiana | Clarksville, New Hampshire |
| Clarksville, Tennessee | Clarksville, Texas | Clarkton |
| Clarkton, Missouri | Clarkton, North Carolina | Clarkus |
| Clarkus papillatus | Clarkus propapillatus | Clarmont |
| Clarmont (bondby) | Clarmont (kommun) | Clarmont, Vaud |
| Claro | Claro (kommun) | Claro (ort) |
| Claro (udde) | Claro dos Poções | Claro Dos Pocoes |
| Claro, punta | Claro, Ticino | Claroides albopunctatus |
| Clarorivinia chrysantha | Clarorivinia grandifolia | Claroteidae |
| Clarotes | Clarotes bidorsalis | Clarotes heuglini |
| Clarotes heuglinii | Clarotes laticeps | Clarotes macrocephalus |
| Clarotes tarabinii | Clarques | Clarrie Hall Dam |
| Clarsach Glacier | Clarté | Clarté (tidskrift) |
| Clarte | Clary | Clary (namn) |
| Clary Hahr | Clary Jansson | Clary Morales |
| Clary, Julie | Clas | Clas (Eriksson) Fleming |
| Clas Adam Ehrengranat | Clas Adam Wachtmeister | Clas Alfrid Broman |
