The aim of the article is to analyze the relation between the right of access to public information and the protection of personal data under General Regulation on Personal Data Protection, which will come into force from 25 May 2018. The issue is highly important for the practice of applying the Act on access to public information, for both sides, obligated entities to provide public information as well as persons whose personal data relate to. Public information may contain personal data. The EU act pointed out that public access to official documents may be considered to be in the public interest. Personal data in documents held by a public authority or a public body should be able to be publicly disclosed by that authority or body if the disclosure is provided for by law. However, it is necessary to reconcile the Member States’ legislation with public access to official documents with the right to the protection of personal data. The Polish Act on access to public information on this requirement to balance both rights does not take into account. The right to the protection of personal data does not occur at all under this Act. This right is derived from the right to privacy. At this background it is necessary to amend Polish act on access to public information with a view to provide reconciliation between public access to official documents with the right to the protection of personal data when the public interest in such disclosure is justified.