大同

大同 may refer to:

• Great Unity, a classical Chinese concept for an utopian view of the world

Places

Cities

• Datong, a prefecture-level city in Shanxi, China

Counties

• Datong County, Shanxi, China

Districts

• Datong District, Daqing, Heilongjiang, China
• Datong District, Taipei, Taiwan

Towns

• Datong, Yilan, Taiwan

Institutions and universities

• Shanxi Datong University, in Datong, Shanxi, China
• Tatung University, Taipei, Taiwan
• Tatung Institute of Commerce and Technology, in Chiayi County, Taiwan
• Utopia University, or Datong University, in Shanghai, China

Companies and sport clubs

• Datong Coal Mining Group, state-owned coal mining enterprise of China
  • Datong Coal Industry, a subsidiary and listed company of Datong Coal Mining Group
• CRRC Datong, since 2003 'CNR Datong Electric Locomotive Co. Ltd' (DELC), in Datong, Shanxi, China
• Tatung Company, Taiwanese electronics company
  • Tatung F.C., a Taiwanese football club owned by the company

Historical eras

• Datong, Chinese era name corresponding to 535 through 546, used by Emperor Wu of Liang
• Datong, Chinese era name corresponding to 947, used by Emperor Taizong of Liao
• Datong, Chinese era name corresponding to 1224 through 1233, used by Puxian Wannu
• Daidō, Japanese era name corresponding to February 1466 through March 1467
• Datong, Chinese era name corresponding to 1932 through 1934, used by Puyi as Chief Executive of Manchukuo

Other uses

• The Chinese Mayor, original title Datong, documentary film