Abstract
The article provides a comparative analysis of the implementation of childrenʼs right to citizenship in different countries. The aim of the study is to assess the compliance of national practices with international standards and to develop recommendations for their improvement. The article is based on methods of comparative legal analysis, descriptive statistics and the study of judicial practice. It examines the legislation and statistical data of Sweden, Argentina, Kazakhstan, Thailand, and Uzbekistan for the period 2020–2024. The findings demonstrate that Sweden has the highest rates of birth registration and the lowest levels of statelessness among children. In Argentina, Kazakhstan, and Uzbekistan, the proportion of children who received citizen ship at birth exceeds 88 %, however, in remote areas of these countries there are still problems with access to registration. Thailand lags behind in birth registration (85 %) and has a high level of statelessness among children (2.1 %), which is associated with bureaucratic barriers for migrants. Based on statistical data and judicial precedents, the study substantiates the need to digitalise procedures, simplify requirements and develop active law enforcement practices. The article contains new scientific proposals for the integration of international standards into national law and specific recommendations for improving legislation on the citizenship of children.