Dagh ooilley ghuillag
- Claare Apollo
- Claare Mariner
- Claddan sniaghtee
- Clade
- Clag
- Clag (greie sheeanoil)
- Clag (greie sheeinoil)
- Clag (traa)
- Clagh hryal
- Clagh sniaghtee
- Claghyn sniaghtee
- Claire Holt
- Claire Tully
- Clare Christian
- Clarkia pulchella
- Classicee
- Claudia Doumit
- Claus Paarss
- Cleayn
- Cleaysh
- Cleaysh chiyt
- Cleaysh lughagh
- Cleaysh voddee
- Cleaysh vuc
- Cleeah (cowrey)
- Cleeau
- Cleeau yiarg
- Cleeshag
- Cleigh Marrey Beaufort
- Clement Attlee
- Clerkagh
- Cliafuine
- Clifford's Really Big Movie
- Clifford the Big Red Dog (straih hellveeish)
- Clint Eastwood
- Cliogagh frangagh
- Clive Dunn
- Cloareen
- Cloreed hodjum
- Cloreed litçhey
- Cloreed photashum
- Cloreed potashum
- Cloreed sodjum
- Cloreed vagnaishum
- Cloreen
- Clou-phreays
- Clou Gaelgagh
- Clou Vraille
- Clou iddaalagh
- Clou trome
- Cluain Aodha
- Cluain Ioraird
- Clwyd
- Cnidaria
- Cnobha
- Cnoc an Linsigh
- Cnoc an Línsigh
- Cnoic Dhoire Bheatha
- Co-assee
- Co-chorp Coontae Chaerffili
- Co-chorp Coontae Chonwy
- Co-chorp Coontae Phen-y-bont ar Ogwr
- Co-chorp Coontae Verthyr Tudful
- Co-chorp Coontae Vro Morgannwg
- Co-chorp Coontae Wrecsam
- Co-earrooder
- Co-effaght Gini
- Co-haaghey sollys
- Co-haaghey sollysh
- Co-heiyderyssyn parlamaidagh ayns Pobblagh Nerin
- Co-heiyderyssyn y Chiare as Feed
- Co-heiyderysyn y Chiare as Feed
- Co-heshaght Dellal Seyr Oarpagh
- Co-hollys rollageagh
- Co-ordrail
- Co-ordrail ny Bretnish
- Co-ordrail y Vretnish
- Co-rollageys
- Co-rollagys y Ven Gheulit
- Co-vreneen
- Co-vunstoo
- Co-vunstoo orgaanagh
- Coagyraght
- Coagyrys
- Cobalt
- Cobbrag veg
- Cobbyr
- Cochaarjys Glass (Nerin)
- Coed-llai
- Coenonympha pamphilus
- Cohionnal Seyr Bascagh
- Cohionnal Seyr dy yn Chatalooin
- Cohionnal Seyr ny Catalooin
- Coigee
- Coill
- Coill Chluana
- Coill an Chollaigh
- Coincya monensis fogh. monensis
- Coinnagh
- Colaashtey ny Trinaid, Divlyn
- Colaashtey ny Trinaid Divlyn
- Colbee
- Colbeen
- Colby
- Colin Doyle (bluckaneyr)
- Colin Firth
- Colin Greenall
- Colleish-Ollooscoill, Ellan Vannin
- Colleish Ainelag Noo
- Colleish Ellan Vannin
- Colleish Ellan Vannin son Ynsagh Sodjey as Syrjey
- Colleish ny Trinaid, Divlyn
- Colleish son Ynsagh Sodjey
- Colleish y Trinaid, Divlyn
- Colloo Trajan
- Collooghyn
- Colm Meaney
- Cologne
- Colorado
- Colught
- Coláiste San Aingeal, Sligeach
- Comaid Mooar 1680
- Comintern
- Commagh (grammeydys)
- Commeeys cour Shee
- Commishoon Eaghtyraneagh (Nerin)
- Comoros
- Conaant Anglo-Yernagh
- Conaant Le Goulet
- Conaant Peairt
- Conaant Pheairt
- Conaant Versailles
- Conamara
- Concepcion, Chile
- Concepción, y Çhillee
- Concepción Montaner
- Conmhaigh
- Connaghtey
- Connaghyn
- Connecticut
- Conney (reddaghey)
- Conrad Bain
- Convallaria majalis
- Conwy (coontae)
- Coo
- Cooat
- Cooat arbyllagh
- Cooat duffyl
- Cooat fliaghee
- Coodagh keeagh
- Coodagh king
- Coodee ching
- Cooid vog heyr
- Cooiney
- Cooish
- Cooishyn leigh buitçhyn Salem
- Cooishyn theayagh
- Cooitinagh
- Coondaeghyn Hostyn
- Coondaeghyn Nerin
- Coondaeghyn jesh-chliaghtagh Hostyn
- Coondaeghyn ny Polynn
- Coonseil Choontae ny Corn
- Coonseil Choontae ny Mee
- Coonseil Chorpagh Shliggee
- Coonseil Hreishteilaght ny h-Ashoonyn Unnaneysit
- Coonseil Slattyssagh Vannin
- Coonseil ny Corn
- Coonseil ny Cornish
- Coonseil ny h-Oarpey
- Coonseil yn Oarpey
- Coontae
- Coontae 'er Managh
- Coontae 'ine Goal
- Coontae Aah Cleeah
- Coontae Aah Cleeah Yiass
- Coontae Aberdon
- Coontae Aontrym
- Coontae Aontryma
- Coontae Ard Maghey
- Coontae Bytów
- Coontae Chaarlagh
- Coontae Cheatharlach
- Coontae Cheeill Chennee
- Coontae Cheeill Darey
- Coontae Cheeill Mantan
- Coontae Cherree
- Coontae Chlagh Manu
- Coontae Chojnice
- Coontae Chorkee
- Coontae Cliggee
- Coontae Corpagh Caerffili
- Coontae Corpagh Conwy
- Coontae Corpagh Merthyr Tudful
- Coontae Corpagh Pen-y-bont ar Ogwr
- Coontae Corpagh Wrecsam
- Coontae Człuchów
- Coontae Durham
- Coontae Dùn Breatainn Heear
- Coontae Dùn Breatainn Hiar
- Coontae Gdańsk
- Coontae Ghalliu
- Coontae Ghivlyn
- Coontae Ghivlyn Yiass
- Coontae Ghoirrey
- Coontae Ghoon Laoire-Raah yn Doon
- Coontae Ghoon Laoire-Rhaa yn Doon
- Coontae Ghoon ny Ghoal
- Coontae Heer Eoin
- Coontae Hliggee
- Coontae Hliggey
- Coontae Hybbyrt Aarey
- Coontae Inver Ayre Hiar
- Coontae Inver Ayre Hwoaie
- Coontae Inver Ayre Jiass
- Coontae Inver Ayre Twoaie
- Coontae Inver Ayre Yiass
- Coontae Kartuzy
- Coontae Kościerzyna
- Coontae Kwidzyn
- Coontae Leesh
- Coontae Lheeahtrim
- Coontae Lhimnee
- Coontae Lhongfort
- Coontae Lhoo
- Coontae Limmeragh
- Coontae Logh Garman
- Coontae Lębork
- Coontae Malbork
- Coontae Nowy Dwór Gdański
- Coontae Phurt Largey
- Coontae Pińczów
- Coontae Puck
- Coontae Rinn Friu Hiar
- Coontae Rinn Friù
- Coontae Rinn Friù Hiar
- Coontae Ros Comain
- Coontae Shliggee
- Coontae Starogard
- Coontae Sztum
- Coontae Słupsk
- Coontae Tczew
- Coontae Tuchola
- Coontae Uíbh Fhailí
- Coontae Valley Aah Cleeah
- Coontae Vay Eo
- Coontae Vuinaghain
- Coontae Vuinaghan
- Coontae Wejherowo
- Coontae ny Galliu
- Coontae ny Heear-Vee
- Coontae ny Mee
- Coontae ny h-Eearvee
- Coontae yn Chavain
- Coontae yn Chavan
- Coontae yn Chlaair
- Coontae yn Dooin
- Coontae yn Doon
- Coontae yn Eearvee
- Coontae yn Lhongfort
- Coontae yn Vee
- Coontae Świecie
- Coontey dy ard-vinishter (Yn Spaainey)
- Coorse Ratchal yn Ooive
- Coorse Ratçhal yn Ooive
- Cooyl-screeudeyr
- Copenhagen
- Copernicium
- Cora Droma Rúisc
- Corbin Bleu
- Corcaigh
- Cork City F.C.
- Corkee
- Cornish
- Cornus mas
- Cornus sanguinea
- Cornus suecica
- Corockle
- Corockle affricaid
- Corockle bleaystagh
- Corockle cleaoil
- Corockle coghooysagh
- Corockle cooyl-chroymmit
- Corockle cooyl-eeacklagh
- Corockle craa
- Corockle crank
- Corockle daa-veillagh
- Corockle faggyssagh
- Corockle faggyssaght
- Corockle far-ghlottyssagh
- Corockle farangagh
- Corockle feeacklagh
- Corockle glottyssagh
- Corockle lhiattagh
- Corockle lurg-chooyleeacklagh
- Corockle meill-eeacklagh
- Corockle scoarnagh
- Corockle screebagh
- Corockle sluggidagh
- Corockle stad
- Corockle stronnagh
- Corsaid
- Corsaideen
- Corys co-ordnaidagh çheeroaylleeagh
- Corys co-ordnaidyn çheer-oaylleeagh
- Corys co-ordnaidyn çheer-oaylleeaght
- Corys ingagh ogheragh Nerin
- Corys lieh-eaghtyraneagh
- Corys ny Greiney
- Corys ny greiney
- Corys parlamaidagh
- Corys screeu
- Corys screeuee
- Corys tree reamyn
- Corys çhyndaaee (rollageydys)
- Coryssyn Screeuee Canadagh
- Coryssyn screeuee Canadagh
- Cosmaid
- Cosmica Sidera
- Cosney stiagh glare
- Cotes-d'Armor
- Courteney Cox
- Couyll
- Coventry City F.C.
- Cowrag
- Cowrey Israel
- Cowrey cleinney Vannin
- Cowrey kemmigagh
- Craa-hallooin as tsunami Sendai 2011
- Craa-hallooin as tsunami Tōhoku, 2011
- Craa-hallooin as tsunami Tōhoku 2011
- Craa thallooin as tsunami Tōhoku, 2011
- Crackan-oaylleeaght
- Cracow
- Cragh meaineraght Blantaidhr
- Craig Beattie
- Craig Davies (bluckaneyr)
- Craig Higginson
- Craig Morgan (bluckaneyr)
- Craig Weatherhill
- Craishtey
- Craishtey feddish
- Craishteyder
- Craishteyder an-ghraagh
- Craishteyder an-graagh