In historical retrospect, the use of national issues and contradictions has repeatedly become the weakening mechanisms for some great powers in regard to others. In this case, various technologies to construct national myths and ideologies based on tribalism and national exclusiveness and superiority were applied. After the “Crimean spring” in 2014, the Crimean Tatar issue gained a new level of relevance. The Republic of Türkiye and Ukraine are actively using the Crimean Tatar factor to oppose the reintegration of Crimea into the Russian Federation and, consequently, to weaken Russia’s positions in the Black Sea and Mediterranean region. In the article the authors analyze the peculiarities of the influence of the Republic of Türkiye on the Crimean Tatars, as well as the Ukrainian initiatives in relation to the Crimean Tatars and joint Turkish-Ukrainian projects, with the target group consisting of the Crimean Tatars. The methodological basis of the research is system-based, geopolitical, civilizational and institutional approaches, which are implemented both directly and by using a number of general scientific and political science methods. The current policy of Türkiye and Ukraine on the Crimean Tatar issue has common features. Firstly, it is currently topical for the policy elites of these states, both at the domestic and international political levels. Under these circumstances, if the Crimean Tatar issue is an opportunity for Kiev to re-establish its jurisdiction over Crimea, then for Ankara the Crimean Tatar population helps to enlist the electoral support, as well as to consider Crimea and the Black Sea region as a Turkish sphere of influence. Secondly, the conditional Turkish-Ukrainian alliance presents itself as a “protector” of the Crimean Tatars from “Russian aggression.” Thirdly, Türkiye and Ukraine are projecting a positive state image by demonstrating protection of interests and observance of the Crimean Tatars rights on the territory of Russia. Fourthly, the actions of Türkiye and Ukraine in terms of the Crimean Tatar can be characterized as a double standard policy. This thesis is confirmed by the national policy of the Republic of Türkiye, and the approaches of Ukraine to the solution of the Crimean Tatar issue before the reunification of Crimea with Russia.