Dagh ooilley ghuillag
- Ceaghley corockle
- Ceaghley corockle toshee
- Ceaghley jerrey y fraue
- Ceaghley mestit
- Ceanannas
- Ceanannas, Coontae ny Mee
- Ceanannas, Coontae yn Vee
- Ceanannas (reddaghey)
- Ceann an Chairn
- Cearbhall Ó Dálaigh
- Ceau emshir
- Ceboidea
- Cedar
- Celastrina argiolus
- Celina Jaitley
- Celina Jaitly
- Celtiagh P as Q
- Celtiagh ellanagh
- Celtibeirish
- Celtiee
- Celtish Hiar
- Celtish Shiar
- Cemre Baysel
- Centaurea cyanus
- Central Statistics Office (Nerin)
- Cerastium fontanum
- Cercopithecidae
- Ceredigion
- Ceredigion (countee)
- Cernyl Routh Goshen
- Ceyda Ateş
- Chace Crawford
- Chad Trujillo
- Chadwick A. Trujillo
- Chaenomeles
- Chaetognatha
- Chaghteraght
- Chaim Herzog
- Champenois
- Chantal Janzen
- Chantyal
- Chantyalish
- Charity Rahmer
- Charlemagne
- Charles Bronson
- Charles Dance
- Charles Darwin
- Charles Dickens
- Charles Dow
- Charles Haughey
- Charles Kerruish
- Charles de Gaulle
- Charli D'Amelio
- Charlie Chaplin
- Charlie Estcourt
- Charlie Murphy (ben-aghteyr)
- Charlie Spencer
- Charlotte's Web
- Charlotte's Web (fillym 1973)
- Charlotte's Web (fillym 2006)
- Charlotte's Web (reddaghey)
- Charlotte's Web (scannane 1973)
- Charlotte's Web (scannane 2006)
- Charlotte's Web 2: Wilbur's Great Adventure
- Charlotte, Carolina Hwoaie
- Charlotte Rampling
- Charly Jordan
- Charon (eayst)
- Charon (fo-phlannad)
- Cheder
- Cheer-oaylleeaght Vannin
- Cheer Eoin
- Cheer ny Aeg
- Cheer ny Gaeil
- Cheer ny Goal
- Cheer nyn Aeg
- Cheer y Sniaghtey
- Cheeraghyn y theihll
- Cheeroaylleeaght
- Cheeroaylleeaght Vannin
- Cheghnaichum
- Chellooishan
- Chellvane
- Chelsea Cooley
- Chengaghyn Celtiagh
- Chengaghyn Gaelgagh
- Chengaghyn Ooralagh
- Chengaghyn ny h-Elveeish
- Chengaghyn ny h-Oarpey
- Chengey
- Chengoaylleeaght ny Gaelgey
- Chepang
- Chepangish
- Chernihiv
- Chernivtsi
- Chernobyl
- Cheshire
- Chester
- Chester A. Arthur
- Cheyenne, Wyoming
- Chiara Consonni
- Chiarn Vannin
- Chiarn Vanninagh
- Chicago
- Chicken Little (fillym 2005)
- Chicken Little (scannane 2005)
- Chicken Run
- Chicken Run (scannane)
- Chied Caggey Dowanagh
- Chied Chaggey Dowanagh
- Chile
- Chingys y cleeau
- Chişinău
- Chișinău
- Chloroplast
- Chongqing
- Chordata
- Chornobyl
- Chris Evans (aghteyr)
- Chris Hutchings
- Chris Killip
- Chris Klein (aghteyr)
- Chris O'Dowd
- Chris Pine
- Chris Pratt
- Chrishell Stause
- Christiaan Huygens
- Christian Doppler
- Christian Gmelin
- Christina Ricci
- Christine Collister
- Christine Kirch
- Christoph Ignaz Abele
- Christopher Columbus
- Christopher Ecclestone
- Christopher Lee
- Christopher Massey
- Christopher Plummer
- Christopher Walken
- Christy Moore
- Chrysanthemum parthenium
- Chrysanthemum segetum
- Chrysophanus amphidamas
- Chrysophanus phlaeas
- Chumash
- Chyler Leigh
- Ciara Hanna
- Ciaran Hinds
- Ciarán Hinds
- Cicero
- Cierra Ramirez
- Cill Charthaigh
- Cill Chluain
- Cill Dealga
- Cill Dhéagláin
- Cill Mheasáin
- Cill Mhic Néanáin (barranys)
- Cill Mhic Réanáin (barranys)
- Cill Rìmhinn
- Cill Táile
- Cille Bhrìghde an Ear
- Cinco minutos
- Cinderella (fillym 1950)
- Cinderella (scannane 1950)
- Cinnamomum
- Cionn Mhálanna
- Circus cyaneus
- Citrus × sinensis
- 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