- Corpus alienum
- Corpus amygdaloideum
- Corpus callosum
- Corpus pineale
- Corpus vitreum
- correct
- cors
- Corso
- Cortinarius armillatus
- Cortinarius praestans
- Corvus corax
- Corvus corone
- cos
- Cosa Nostra
- Costa Rica
- Cote dIvoire
- Cottage
- Cottidae
- Cotton State
- Cottus gobio
- Coturnix coturnix
- Couch
- Couleur
- Coulomb
- Counter
- Counterpart
- County Armagh
- County Carlow
- County Cavan
- County Donegal
- County Kerry
- County Limerick
- Coup
- Coup d’État
- Coupe
- coupler
- Coupon
- Couponschneider
- Cour
- Courage
- couragiert
- Courbaril
- Courser
- Courtage
- Courtoisie
- Cousin
- Cousine
- Couvert
- Cowboy
- Coxa
- Coypu
- CPU
- Crack
- Crackpot
- Cranberry
- Craniata
- Craniota
- Cranium
- Crash
- Crashkurs
- Crassula ovata
- Crater
- Craterellus cornucopioides
- Cree
- Creek
- Creek language
- Creme
- Creme Caramel
- Creme de la Creme
- cremefarben
- cremen
- cremeweiß
- Crepe
- Crescendo
- Crew
- Crex crex
- Croissant
- Croquis
- crossing over
- Croup
- Crouton
- Croûtons
- Cruise Missile
- Cruor sanguinis
- Crux
- Crystal
- CSU
- csv
- CT
- cu
- Cucullia
- Cucumis
- Cucumis sativus
- Cumin
- Cumulus
- Cunnilingus
- Cunnus
- Cup
- Cupbewerb
- Cupido
- Cupidus
- Cupressus
- Cupwettbewerb
- Curd
- Curling
- Curriculum
- Curriculum Vitae
- Curry
- Currypulver
- Currywurst essen
- Cursor
- Customizing
- customs
- Cut
- Cutaway
- Cutter
- CVJM
- cya
- cyan
- Cyanid
- Cyanobakterium
- Cyanocobalamin
- Cyanwasserstoffsäure
- Cyberspace
- Cyclohexanol
- Cyclohexylalkohol
- Cymbal
- Cyperaceae
- Cyperus
- Cystein
- Cytisus scoparius Link
- Cytoplasma
- czyli