34th Battalion
34th Battalion may refer to:
Military units
- 34th Battalion (Australia), 1st Australian Imperial Force
- 34th Battalion (New Zealand)
- 34th Battalion, CEF, Canadian Expeditionary Force
- 34 Battalion (SWATF), South West Africa Territorial Force
- HDF 34th Bercsényi László Special Forces Battalion, Hungary
- 34th Battalion Virginia Cavalry