At present, the right to privacy is one of fundamental human rights. In the Polish legal system, its value is emphasised by the circumstance that it was laid down expressis verbisin the Constitution that is currently in force. This situation is a unique novelty since the right to privacy was not directly expressed in the previous Polish basic laws. However, this does not mean that the legislator did not envisage any regulations related to the matter of privacy. Indeed, this norm can be derived from the guarantees indicated in the content of the March Constitution. The article presents the development of the right to privacy in the March Constitution and its bills.