Grenada (ISO 3166 and WMO country code: GD; Internet TLD code: .gd)

Grateful Dead (GD), an American rock band

"Gd" or "G-d," spellings of the name of God in Judaism

Green Day (GD), an American rock band

Gadolinium (chemical symbol: Gd), a chemical element

General Dynamics (GD), is a US-based defense conglomerate

Gold Digger, an American comic book by Fred Perry

Gaucher's disease (abbrev. GD), the most common of the lipid storage diseases.

Gangster Disciples (GD), an African American street gang in the United States

Global Dynamics (GD), the secret research facility in the Sci-Fi drama Eureka

.gd, the country code top-level domain for Grenada

Soman nerve gas (NATO designation: GD)

GD Graphics Library for dynamically manipulating images

Gudermannian function, a mathematical function relating the circular and hyperbolic trigonometric functions

General Delivery (abbrev. GD), also known as Poste Restante, a service where the post office holds mail until the recipient calls for it.

GD-ROM, storage media for the Sega Dreamcast

Scottish Gaelic language (ISO 639-1 language code: gd)