Austrian army may refer to:
- Austrian Federal Army, the modern Austrian military
- Austro-Hungarian Army, the ground force of the Austro-Hungarian Dual Monarchy from 1867 to 1918
- Common Army, the largest part of the Austro-Hungarian Army from 1867 to 1914
- Imperial-Royal Landwehr (of Austria), 1867 to 1918
- Imperial Army of the Holy Roman Emperor, the army of the Habsburg emperors
- Imperial and Royal Army during the Napoleonic Wars, the reformed armed force of the Austrian Empire (1792–1815)
- Imperial Austrian Army (1806–1867), army of the Austrian Empire
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