- CD
- CDU
- CDU-Parteitag
- CHI
- CIA
- CMT
- CO2
- CSD
- CSU
- Cacau
- Cafe
- Café
- Calmbach
- Calw
- Calw rockt
- Camping
- Campingplatz
- Campino
- Campus
- Cannabis
- Cannes
- Cannstatter Wasen
- Car2go
- Caritas
- Carl Gustaf von Schweden
- Carl Philip von Schweden
- Carla Bruni
- Carlos Gruezo
- Carsharing
- Casino
- Casting
- Celesio
- Cem Özdemir
- Champions League
- Charlie Hebdo
- Charlottenplatz
- Charlène von Monaco
- Charts
- Chemie
- Chile
- Chimperator
- China
- Chor
- Chorduell
- Christian Gentner
- Christian Gross
- Christian Lindner
- Christian Streich
- Christian Träsch
- Christian Wulff
- Christine Lagarde
- Christine Lambrecht
- Christoph Daum
- Christoph Hess
- Christoph Sonntag
- Christoph Waltz
- Christopher O'Neill
- Christopher Street Day
- Claudia Pechstein
- Claudia Roth
- Claus Schmiedel
- Claus Weselsky
- Club
- Clubs
- Comedian
- Comedy
- Comic
- Commando Cannstatt
- Commerzbank
- Computer
- Computerspiele
- Conny Conrad
- Container
- Cornelius Gurlitt
- Corona
- Corona-Verordnung
- Corona-Virus
- Coronavirus
- Costa Concordia
- Country
- Crailsheim
- Cristian Molinaro
- Cristiano Ronaldo
- Cro
- Crosslauf
- Curevac
- Curling
- Cyberkriminalität
- Cybermobbing
- chaos