The National Australia Bank is an Australian bank.
National Australia Bank may also refer to the following bank buildings:
- National Australia Bank (180 Queen Street), a heritage-listed former bank building in Brisbane, Queensland
- National Australia Bank (308 Queen Street), a heritage-listed bank building in Brisbane, Queensland
- National Australia Bank, Childers, a heritage-listed bank building in Childers, Bundaberg Region, Queensland
- National Australia Bank building, Dubbo, a heritage-listed former bank building in Dubbo, New South Wales