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

Biology and medicine

 * Circumflex artery (disambiguation), multiple arteries of the human body
 * Phosgene oxime, a chemical warfare agent

Computing

 * 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)

Other uses in science and technology

 * 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 $$\!\ c_\mathrm w$$)

Places

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

Transportation

 * Citroën CX, a French executive car
 * Honda CX series, a Japanese motorcycle range
 * Mitsubishi Concept-cX, a Japanese subcompact SUV concept
 * Mazda CX, the prefix for Mazda's crossover and SUV lineup

Other uses

 * 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
 * Ĉ, a letter in the Esperanto alphabet
 * Cx, a smiling emoticon
 * Cx, referencing popular streamer Ice Poseidon