Gan can have several meanings:

• A Romanization of the Chinese character 甘 (Gān), an abbreviation for Gansu Province in the People's Republic of China
• A Romanization of the Chinese character 赣 (Gàn), an abbreviation for:
  • The Gan River
  • Jiangxi Province in the People's Republic of China, through which the river flows
  • the Gan varieties of Chinese, which are concentrated in and form the typical speech of Jiangxi
• Gan, a commune in the Pyrénées-Atlantiques département in France.
• Gan, also means to do in chinese, which is commonly used in swearing or cussing.
• Gan, a god in Stephen King's The Dark Tower book series.
• GAN is an acronym that stands for Giant axonal neuropathy and is also the name of the gene that when mutated causes the disorder.
• The French cycling team GAN was later renamed Crédit Agricole.
• Gallium nitride, chemical symbol GaN, is an important wide bandgap semiconductor material with multiple applications in blue lasers and light emitting diodes, high electron mobility transistors, and other electronic devices.
• A Global Area Network

Gan as a place name may refer to: Gansu (Simplified: 甘肃; Traditional: 甘肅; Hanyu Pinyin: ; Wade-Giles: Kan-su, or modified as Kan-suh) is a province located in the northwest of the Peoples Republic of China. ... The Gan River (Chinese: 赣江; pinyin: ) of southern China travels 885 km north through Jiangxi before flowing into Lake Poyang and thence into the Yangtze River. ... Jiangxi (Chinese: 江西; pinyin: ; Wade-Giles: Chiang-hsi; Postal System Pinyin: Kiangsi) is a southern province of the Peoples Republic of China, spanning from the banks of the Yangtze River in the north into hillier areas in the south. ... Gan (赣) is one of the major divisions of spoken Chinese, concentrated in and typical of Jiangxi Province. ... The commune (in French: commune, word appeared in the 12th century, from Medieval Latin communia, meaning a gathering of people sharing a common life, from Latin communis, things held in common) is the lowest level of administrative division in the French Republic. ... Pyrénées-Atlantiques (Gascon: Pirenèus-Atlantics; Basque: Pirinio-Atlantiarrak or Pirinio-Atlantikoak) is a département in the southwest of France which takes its name from the Pyrenees mountains and the Atlantic Ocean. ... Template:France divisions levels, Junkyard Willie The départements (or departments) are administrative units of France and many former French colonies, roughly analogous to British counties. ... Stephen King Stephen Edwin King (born September 21, 1947) is an American author best known for horror novels. ... The Dark Tower is a fantasy fiction, science fantasy, horror, and western themed series of novels by the American writer Stephen King. ... Giant axonal neuropathy is a rare inherited condition that causes disorganization of neurofilaments. ... A cycling team is a group of cyclists who join a team or are acquired and train together to compete in bicycle races of any kind, whether they are recreational or professional. ... Crédit Agricole is the main sponsor of a French professional cycling team managed by Roger Legeay. ... Gallium nitride (GaN) is a wide bandgap semiconductor material used in optoelectronic, high-power and high-frequency devices. ... In solid state physics and related applied fields, the band gap is the energy difference between the top of the valence band and the bottom of the conduction band in insulators and semiconductors. ... A semiconductor is a material with an electrical conductivity that is intermediate between that of an insulator and a conductor. ... The global area network standard has been proposed as IEEE 802. ...

• Gan (Gaafu Dhaalu Atoll) (Republic of Maldives)
• Gan (Laamu Atoll) (Republic of Maldives)
• Gan (Seenu Atoll) (Republic of Maldives)

• Gan is a small place in the municipality of Fet in Akershus, Norway.