An official history is a work of history which is sponsored, authorised, or endorsed by its subject. The term is most commonly used for histories which are produced at a government's behest. However, the term may also encompass, for example, company histories, i.e. histories of commercial companies which the company itself has commissioned. An official biography (one written with the permission, cooperation, and perhaps participation of its subject or its subject's heirs) is often known as an authorized biography.

Official histories frequently have the advantage that the author or authors have been given access to archives, interview subjects and other primary sources which would be closed or inaccessible to independent historians. However, because of the necessarily close relationship between author and subject, such works may be (or be perceived to be) partisan in tone, and to lack historical objectivity. In fact, the extent to which official histories are partisan varies considerably: some are indeed little more than exercises in public relations and promotion, whereas in other cases the authors will have retained sufficient independence to be able to express negative as well as positive judgements about their subjects.