This article examines digital diplomacy as an important instrument of contemporary foreign policy. Drawing upon academic literature, official documents, and digital communications, the study explores the approaches adopted by the United States, France, Russia, China, and Kazakhstan in the use of social media and digital platforms for foreign policy purposes. Particular attention is devoted to the role of digital diplomacy in shaping states’ international image, promoting political positions, and engaging with global audiences. The study also addresses the principal challenges associated with digital diplomacy, including disinformation, the influence of social media algorithms, and the increasingly blurred distinction between personal and official communication. The findings indicate that digital diplomacy is becoming an integral component of international relations and a significant instrument for advancing national interest in the context of global digitalization.