Western Army may refer to:

  • Western Army (Japan), an active army of the Japan Ground Self-Defense Force
  • Western Army (Ottoman Empire), active during the First Balkan War
  • Western Army (Russia), an army of the Russian SFSR formed in 1918
  • Western Army of the White Movement, formed in January 1919
  • the forces of the Toyotomi clan during the Siege of Osaka

See also

  • First Western Army, an army of Imperial Russia active during the Napoleonic Wars
  • Second Western Army, an army of Imperial Russia active during the Napoleonic Wars