This chapter explores the middle power cooperation between Türkiye and South Korea in the realm of public diplomacy, focusing on Türkiye’s Asia Anew Initiative. Both Türkiye and Korea, as middle powers, utilize their historical, cultural, and geopolitical advantages to enhance their influence on the global stage. The chapter emphasizes the deep-rooted historical and cultural connections between the two nations, particularly their “blood brothers” relationship formed during the Korean War and their shared Altaic heritage. These connections serve as a foundation for bilateral cooperation in cultural diplomacy, niche diplomacy, and multilateral engagement. The study highlights how Tükiye’s Asia Anew Initiative offers new opportunities for collaboration with Korea, particularly in the Asia-Pacific region. It addresses Türkiye’s limitations in economic and diplomatic engagement with Asia, suggesting that partnerships with Korea could help overcome these challenges. The chapter further examines the role of public diplomacy in middle power strategies, discussing how Türkiye and Korea can leverage cultural, technological, and educational exchanges to enhance their soft power in the region. By focusing on niche diplomacy, Türkiye and Korea can maximize their influence in specific areas, such as media collaboration, academic exchanges, and peacekeeping initiatives. The chapter concludes by outlining the potential for Türkiye and Korea to deepen their cooperation in public diplomacy, thereby expanding their roles as influential middle powers in the Asia-Pacific and beyond.