National Audit Office may refer to audit authorities of various national governments:
- Australian National Audit Office, an agency of the federal Commonwealth government, established 1901
- ('Federal Court of Auditors'), the Germany body, re-established in West Germany in 1948
- Court of Audit (France) (), the Court of Audit in France, established in 1807
- National Audit Office (China) (), the supreme audit institution of the People's Republic, established in 1983
- National Audit Office of Estonia (), established by the provisional government in 1918; reestablished in 1990
- National Audit Office of Lithuania (), the supreme audit institution in Lithuania, established 1919
- National Audit Office (United Kingdom), parliamentary body, established in its current form in 1983
- Swedish National Audit Office (), established in its current form in 2003
- National Audit Office of Finland
- National Audit Office (Tanzania)
- National Audit Office (Sri Lanka)
See also