The article is devoted to the study of the problem of regional differences in wages, the development of a cluster typology of the regions of Kazakhstan in terms of wages and the justification of the possibilities of reducing its regional differentiation. The article provides an overview of scientists' points of view on the problem of labor income inequality, assesses the level of regional wage differences in Kazakhstan, conducts a cluster analysis and develops a typology of the country's regions according to the level of average nominal wages, gross regional product per capita and the share of gross value added of the quasi-public sector in the gross regional product. A group of regions has been identified that are most in need of regulatory measures to increase wages. The possibilities of reducing large regional wage differences are substantiated, primarily by attracting investments to boost the economy, increase employment and labor incomes, as well as by introducing increasing regional coefficients when setting minimum wage standards in remote areas, regions with difficult natural and climatic conditions. The methods of systematic literary review, logical analysis? analogies and generalizations, economic and statistical, cluster analysis, and typology are used.