Abstract: The subject of this research is the constitutional human rights and freedoms in the Russian Federation. The goal is to substantiate their most rational classification for application in human rights advocacy of the Commissioner for Human Rights of the Russian Federation. The author conducts the analysis of these rights and freedoms, as well as underlines the need for their classification for the purpose of application by the Commissioner for Human Rights of the Russian Federation. Various approaches within modern national legal literature towards such classification. The author also presents an original approach based on the quantitative criterion – degree of perception of rights and freedoms by population of the country. The proposed new classification significantly differs from the officially accepted in its commitment to results of human rights advocacy of the for Human Rights of the Russian Federation.