A national academy is an organizational body, usually operating with state financial support and approval, that co-ordinates scholarly research activities and standards for academic disciplines, and serves as public policy advisors, research institutes, think tanks, and public administration consultants for governments or on issues of public importance, most frequently in the sciences but also in the humanities. Typically the country's learned societies in individual disciplines will liaise with or be coordinated by the national academy. National academies play an important organisational role in academic exchanges and collaborations between countries.
The extent of official recognition of national academies varies between countries. In some cases they are explicitly or de facto an arm of government; in others, as in the United Kingdom, they are voluntary, non-profit bodies with which the government has agreed to negotiate, and which may receive government financial support while retaining substantial independence. In some countries, a single academy covers all disciplines. In others, there are several academies, which work together more or less closely; for example, France, where the Institut de France groups five self-governing Academies, or Australia. In many states, they are organized in academies of science. In the countries of the former Soviet Union, and in the People's Republic of China, the national academies have considerable power over policy and personnel in their areas. There is, however, a growing consensus among international federations of learned academies that bona fide national (or learned) academies need to adhere to certain criteria:
