Nowadays it is important to explore the critical role of cross-cultural competence in fostering effective interreligious dialogue within the Ukrainian context. Ukraine, as a culturally and religiously diverse society, is home to a variety of faith traditions, including Orthodox Christianity, Catholicism, Protestantism, Islam, and Judaism. This diversity creates both opportunities and challenges for interfaith communication and cooperation. We will focus on how cross-cultural competence—defined as the ability to understand, communicate with, and effectively interact with people across cultures—can enhance mutual respect, reduce religious tensions, and promote social cohesion. Special attention will be given to the historical and contemporary interactions between different religious communities in Ukraine, highlighting examples of successful interfaith initiatives. The role of cross-cultural diplomacy in mitigating conflicts and fostering peace will also be discussed, along with the practical challenges that arise in the pursuit of religious harmony. This exploration will contribute to a deeper understanding of how cross-cultural competence serves as a vital tool for promoting interreligious dialogue and cooperation in a pluralistic society like Ukraine.