GX, Gx, or gx may refer to:
GXS (OpenText GXS) is a subsidiary of OpenText Corporation headquartered in Gaithersburg, Maryland, United States.
GxP is a general term for good (anything...) practice quality guidelines and regulations. These guidelines are used in many fields, including the pharmaceutical and food industries.
GXT was an Italian subscription-based comedy/entertainment television channel.
GXG Markets was a European Regulated Market which operated a securities market focusing on SME companies by operating a three-tier market structure with an OTC (Over-the-counter) segment called GXG First Quote (an information and trading platform for professional investors), a multilateral trading facility (MTF) called GXG Main Quote and a Regulated market called GXG Official List.
Guangxi Beibu Gulf Airlines, or simply GX Airlines, is a Chinese airline based at Nanning Wuxu International Airport.
GXSOUL is a Nepalese hip hop group founded in 2006, with GXSOUL being an abbreviation for Gorkhali Extreme Soul.
GX Jupitter-Larsen (sometimes erroneously spelled Juppiter-Larsen) is an artist, based in Hollywood, California, who has been active in a number of underground art scenes since the late 1970s.
GX Velorum (GX Vel) is a blue supergiant variable star in the constellation Vela. Its apparent magnitude is 5.0. It is an α Cygni pulsating variable.
GX 339-4 is a moderately strong variable galactic low-mass X-ray binary (LMXB) source and black-hole candidate that flares from time to time.