GD

GD, Gd, or gd may refer to:

Computing

• GD Graphics Library for dynamically manipulating images
• GD-ROM, storage media for the Sega Dreamcast
• .gd, the country code top-level domain for Grenada

Science and medicine

• Gadolinium (chemical symbol: Gd), a chemical element
• Gaucher's disease, the most common of the lipid storage diseases
• Gaussian distribution, more commonly called the normal distribution, an important family of continuous probability distributions
• Generalized Dirichlet distribution, a probability distribution also used in statistics
• Generalized dystonia, a neurological movement disorder
• Gestational diabetes, a form of diabetes associated with pregnancy
• Gudermannian function, used in map-making
• GD, the NATO designation for the toxic chemical soman
• The International Symposium on Graph Drawing, an annual academic conference in which researchers present peer reviewed papers on graph drawing, information visualization of network information, geometric graph theory, and related topics
• Graves' disease, an autoimmune thyroid disorder
• Gain of deiodinases or Sum activity of peripheral deiodinases, used in diagnosis of thyroid disorders
• Grover's disease, another name for Transient acantholytic dermatosis

Other

• gd, ISO 639-1 code for Scottish Gaelic language
• GD, the ISO 3166 country code for Grenada
• Goal difference
• Good Delivery, a specification for gold and silver bars
• Gangster Disciples, a black street gang in the United States
• Gardner Denver, a US-based manufacturer of industrial equipment
• General Delivery (French: Poste restante), a service where the post office holds mail until the recipient calls for it
• General Dynamics, a US-based defense conglomerate
• Grateful Dead, an American rock band
• Great Depression, sudden collapse of the economy in the 1920s
• Green Day, an American rock band
• G-Dragon (born 1988), leader of Korean group Big Bang
• Guangdong, China
• Georgia Dome, a stadium in Atlanta, Georgia and the home of the Atlanta Falcons
• GD, the symbol for the Composite Index on the Athens Stock Exchange