A Romanization of the Chinese character 甘 (Gān), an abbreviation for Gansu Province in the People's Republic of China

Jiangxi Province in the People's Republic of China, through which the river flows

Gan (linguistics) varieties of Chinese, which are concentrated in and form the typical speech of Jiangxi

Generic Access Network formerly known as Unlicensed Mobile Access (UMA)

GaN, Gallium(III) nitride, a direct-bandgap semiconductor material of wurtzite crystal structure

GAN (cycling team), a French cycling team

Gananoque, Ontario, Canada, by local nickname

Gan Isurugi, a fictional character from the Rival Schools video game series

Gan (Laamu Atoll), Republic of Maldives

Gan, Pyrénées-Atlantiques, a commune in the Pyrénées-Atlantiques département in France

Gan (Stephen King), the creative overforce in The Dark Tower series by Stephen King

Olag Gan, a fictional character in the British television series Blake's 7

Gan (Gaafu Dhaalu Atoll), Republic of Maldives

Global Area Network

Giant axonal neuropathy and is also the name of the gene that when mutated causes the disorder.

Gan International Airport, Maldive by IATA code

Gan (Seenu Atoll), Republic of Maldives

Gan River

Gan, Norway, a village in Fet in Norway