CX

CX or Cx may refer to:

Businesses and organizations

Cathay Pacific, a Hong Kong airline (IATA code CX)
Cemex, a Mexican building materials supply company (New York Stock Exchange symbol "CX")
Connex Melbourne, a former Australian train operator
Fuji TV, or CX, a Japanese television network

An interface in IP Multimedia Subsystems, using the diameter protocol, between Home Subscriber Server and Application Server
CX register, a general-purpose 16-bit X86 register
C++/CX (component extensions), a language extension for C++ compilers from Microsoft that enables C++ programmers to write programs for the Windows Runtime (WinRT)

CX (noise reduction), a noise reduction system, most notably used for the analog audio tracks of LaserDiscs
Cx, an abbreviation for the building commissioning process
Drag coefficient ( $c_{\mathrm {d} }\,,$ $c_{\mathrm {x} }\,$ or $\!\ c_{\mathrm {w} }$ )

Christmas Island ISO 3166-1 alpha-2 code
- .cx, the top-level domain for Christmas Island

110 (number), in Roman numerals
Chron X, a digital collectible card game
Cross-examination debate, also known as Policy debate, a form of speech competition
Customer experience, the experiences a customer has with a supplier of goods or services
Cyclo-cross, a form of bicycle racing
Nikon CX format, an image sensor format
Cx or cx, a digraph in the Esperanto x-system orthography, representing the consonant sound [t͡ʃ], normally spelled Ĉ or ĉ
Cx, a smiling emoticon
Cx, referencing popular streamer Ice Poseidon