- Claudia Schiffer
- c
- C Sword 90
- C-130
- C-17 Globemaster
- C4i
- C/A (album Lilu)
- Cabeltech
- Cadillac (producent samochodów)
- Caenorhabditis elegans
- Cahokia
- Calgary (Miasto)
- california
- call center
- Call of Duty (gra)
- całkowite zaćmienie Słońca
- Cambridge
- cambridge analytica
- Camelot
- Cameron James
- Camileo
- camp
- Camp Century
- camper
- Campi Flegrei
- Campus Warsaw
- campylobacter
- Canal+ (stacja telewizyjna)
- Canal+ Cyfrowy Sp. z o.o. (Firma)
- Candy
- Candy Bianca
- Cannes
- Cannondale
- Canon (firma)
- canon DP-V3010
- Canon EF 16-35mm f/4L IS USM
- Canon EF 200-400mm f/4L IS USM Extender 1.4x
- Canon EF-M 55-200mm f/4
- Canon EF-S 10-18mm f/4.5-5.6 IS STM
- Canon EOS
- Canon EOS 1100D
- Canon EOS 1200D
- Canon EOS 200D
- Canon EOS 5D Mark IV
- Canon EOS 600D
- Canon EOS 6D Mark II
- Canon EOS 700D
- Canon EOS 70D
- Canon EOS 77D
- Canon EOS 7D Mark II
- Canon EOS 800D
- Canon EOS 80D
- Canon EOS C100
- Canon EOS C300 Mark II
- Canon EOS M10
- Canon EOS M100
- Canon EOS M2
- Canon EOS M5
- Canon EOS M6
- Canon EOS-1D X Mark II
- Canon IXUS 160
- Canon IXUS 165
- Canon ME20F-SH
- Canon PIXMA PRO-10S
- Canon PowerShot G1 X Mark II
- Canon PowerShot G3X
- Canon PowerShot G7 X
- Canon PowerShot G9 X
- Canon PowerShot G9 X Mark II
- Canon PowerShot N2
- Canon PowerShot S120
- Canon PowerShot SX270 HS
- Canon PowerShot SX280 HS
- Canon PowerShot SX400 IS
- Canon PowerShot SX510
- Canon PowerShot SX520 HS
- Canon PowerShot SX530 HS
- Canon PowerShot SX60HS
- Canon PowerShot SX610 HS
- Canon PowerShot SX710 HS
- Canon PowerShot SX730 HS
- Canon XC10
- Canoni EOS 100D
- Canoo
- Cape Canaveral
- capitals
- cappuccino
- Captagon
- captcha
- car
- car audio
- car sharing
- Caracal
- Carberp
- CARBON (Spółka NewConnect)
- card sharing
- cardsharing
- Cargo Dragon 2
- Carl Froch
- Carl Zeiss
- Carla Bruni
- Carlos
- Carlos Slim (Meksykanin, najbogatszy człowiek świata)
- Carmat Heart
- Carnegie Hall
- carpooling
- carsharing
- CASA
- Casa C-295M
- Casio (firma)
- CASIS
- Cassidian
- Cassini-Huygens
- casting
- Castle (Serial)
- Castle Bravo
- cat
- CATL
- Cave 3D
- CB radio
- CBA
- CBK
- CBOS
- CBŚ
- CCD
- CCleaner
- cctv
- CD Projekt RED (dawniej Optimus SA - Spółka GPW)
- CDC
- CDU
- CeBIT (Targi komputerowe)
- cebit
- CeBIT 2013
- CeBIT 2014
- CeBit 2018
- CeBIT polskie partnerstwo
- cebula
- cechy
- cefiksym
- cegła
- cegły
- cele
- celebgate
- Celebrite
- celebryci
- celebrytki
- Celera 500L
- Celine Dion
- Celluon Magic Cube
- celnicy