33rd Battalion or 33rd Infantry Battalion may refer to:

• 33rd Battalion (Australia), a unit of the Australian Army
• 2/33rd Battalion (Australia), a unit of the Australian Army that served during World War II
• 33rd Battalion, CEF, a unit of the Canadian Expeditionary Force during World War I
• 33 Battalion (SWATF), a unit of the South West Africa Territorial Force
• Reserve Police Battalion 33, an auxiliary unit of the Third Reich
• Schutzmannschaft Battalion 33, an auxiliary unit of the Third Reich
• 33rd Battalion Virginia Cavalry

• 33rd Division (disambiguation)
• 33rd Brigade (disambiguation)
• 33rd Regiment (disambiguation)
• 33rd Squadron (disambiguation)

Topics referred to by the same term

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