| Castillo-Nuevo | Castillon (tổng của Arthez-de-Béarn) | Castillon (tổng của Lembeye) |
| Castillon, Alpes-Maritimes | Castillon, Calvados | Castillon, Hautes-Pyrénées |
| Castillon-de-Castets | Castillon-de-Larboust | Castillon-de-Saint-Martory |
| Castillon-Debats | Castillon-du-Gard | Castillon-en-Auge |
| Castillon-en-Couserans | Castillon-en-Couserans (tổng) | Castillon-la-Bataille |
| Castillon-Massas | Castillon-Savès | Castillonnès |
| Castillonroy | Castilly | Castilnuevo |
| Castilruiz | Castin | Castine, Ohio |
| Castineta | Casting | Castino |
| Castione Andevenno | Castione della Presolana | Castions di Strada |
| Castiraga Vidardo | Castirla | Castle Bravo |
| Castle Clinton | Castle Combe | Castle Grove, Quận Jones, Iowa |
| Castle Hills, Texas | Castle in the Sky | Castle on the Hill |
| Castle on the Hill (bài hát) | Castle Rock, Colorado | Castle Rock, Quận Hettinger, Bắc Dakota |
| Castle Rock, Wisconsin | Castle Shannon, Pennsylvania | Castle Town Dandelion |
| Castle Walls | Castle, Quận McPherson, Kansas | Castleberry, Alabama |
| Castlemaine, Victoria | Castleton | Castleton, Bắc Yorkshire |
| Castleton, Quận Reno, Kansas | Castnia | Castnia juturna |
| Castniidae | Castniomera | Castnius |
| Casto | Castoponera | Castoponera ciliata |
| Castoponera lecythus | Castoponera scotopoda | Castor |
| Castor (chi động vật) | Castor (sao) | Castor canadensis |
| Castor fiber | Castor và Pollux | Castor, Quận Madison, Missouri |
| Castor, Quận Stoddard, Missouri | Castoraeschna castor | Castoraeschna colorata |
| Castoraeschna corbeti | Castoraeschna coronata | Castoraeschna decurvata |
| Castoraeschna januaria | Castoraeschna longfieldae | Castoraeschna margarethae |
| Castoraeschna tepuica | Castorano | Castoridae |
| Castorimorpha | Castorocauda | Castorocauda lutrasimilis |
| Castra Praetoria | Castra Pretoria | Castra-Nova |
| Castratella | Castratella piloselloides | Castratella rosea |
| Castrato | Castraz | Castrejón de la Peña |
| Castrelo de Miño | Castrelo do Val | Castres |
| Castres (huyện) | Castres (quận) | Castres, Aisne |
| Castres, Tarn | Castres-Gironde | Castrezzato |
| Castri di Lecce | Castrica oweni | Castrica phalaenoides |
| Castrica sordidior | Castricum | Castries |
| Castries (quận) | Castries, Hérault | Castrignano de' Greci |
| Castrignano del Capo | Castril | Castrilanthemum |
| Castrilanthemum debeauxii | Castrillón | Castrillo de Cabrera |
| Castrillo de Don Juan | Castrillo de la Guareña | Castrillo de la Reina |
| Castrillo de la Valduerna | Castrillo de la Vega | Castrillo de Onielo |
| Castrillo de Riopisuerga | Castrillo de Villavega | Castrillo del Val |
| Castrillo Matajudíos | Castrione digiticaudata | Castrione longicaudata |
| Castro | Castro (Sao) | Castro Alves |
| Castro Caldelas | Castro Daire | Castro Daire (đô thị) |
| Castro de Elviña | Castro de Filabres | Castro de Fuentidueña |
| Castro de Rei | Castro dei Volsci | Castro del Río |
| Castro Marim | Castro Marim (đô thị) | Castro Urdiales |
| Castro Verde | Castro Verde (đô thị) | Castro, Bergamo |
| Castrocalbón | Castrocaro Terme e Terra del Sole | Castrocielo |
| Castrocontrigo | Castrodeza | Castrofilippo |
| Castrogonzalo | Castrojeriz | Castrojimeno |
| Castromembibre | Castromocho | Castromonte |
| Castronia collaris | Castronia opostata | Castronno |
| Castronuño | Castronuevo | Castronuevo de Esgueva |
| Castropignano | Castropodame | Castropol |
| Castroponce | Castroserna de Abajo | Castroserracín |
| Castrosion renei | Castrotierra de Valmadrigal | Castroverde |
| Castroverde de Campos | Castroverde de Cerrato | Castroviejo |
| Castroviejoa | Castroviejoa frigida | Castroviejoa montelinasana |
| Castroville, Texas | Castrovirreyna (tỉnh) | Castuera |
| Castulo amorpha | Castulo binotata | Castulo catocalina |
| Castulo congrua | Castulo conographa | Castulo diplographa |
| Castulo discrepans | Castulo doubledayi | Castulo gratiosa |
| Castulo hamula | Castulo laeta | Castulo nivosa |
| Castulo plagiata | Castulo rubricosta | Castulo sheperdi |
| Castulo shepherdi | Castulo struthias | Castulo terpnodes |
| Castulo thirkelli | Castulo xanthomelas | Castulo zonophanes |
| Casu marzu | Casual game | Casuariclystis |
| Casuariclystis latifascia | Casuariidae | Casuariiformes |
| Casuarina | Casuarina collina | Casuarina cristata |
| Casuarina cunninghamiana | Casuarina equisetifolia | Casuarina glauca |
| Casuarina grandis | Casuarina junghuhniana | Casuarina obesa |
| Casuarina oligodon | Casuarina orophila | Casuarina pauper |
| Casuarina potamophila | Casuarina tenella | Casuarina teres |
| Casuarinaceae | Casuarius | Casuarius bennetti |
| Casuarius casuarius | Casuarius unappendiculatus | Casus belli |
| Caswell, Wisconsin | CASZ1 | Cat (Unix) |
| Cat girl | Cat on a Hot Tin Roof (phim) | Cat Stevens |
| Cat Street | Cat's Eye Nebula | CAT:AB |
| CAT:BANMAU | CAT:CITE | CAT:CX |
| CAT:DIS | CAT:HN | CAT:IWCT |
| CAT:LEGAL | CAT:NPOV | CAT:SDHLKSD |
| CAT:TB | CAT:TBW | CAT:TC |
| CAT:TEMP | CAT:TEMPLATE | CAT:TGP |
| CAT:TMTHL | CAT:TNG | CAT:TRACK |
| CAT:TWU | CAT:WTC | Cata |
| Catabapta | Catabapta residua | Catabapta serena |
| Catabena | Catabena bahamensis | Catabena candida |
| Catabena divisa | Catabena lineolata | Catabena miscellus |
| Catabena nanuscula | Catabena petraea | Catabena pronuba |
| Catabena sagittata | Catabena seorsa | Catabena terens |
| Catabena terminellus | Catabena vitrina | Catabrachmia |
| Catabrosa | Catabrosa aquatica | Catabrosa werdermannii |
| Catabucentes abdominalis | Catacercus | Catacercus fuegianus |
| Catachora minor | Cataclysme | Cataclysme comparata |
| Cataclysme conturbata | Cataclysme disformata | Cataclysme dissimilata |
| Cataclysme dissimulata | Cataclysme elbursica | Cataclysme festivata |
| Cataclysme infumata | Cataclysme millierata | Cataclysme murina |
| Cataclysme obliquilineata | Cataclysme obscurata | Cataclysme plurilinearia |
