In today’s complex global environment, the Republic of Korea (South Korea) and Türkiye, traditionally recognized as middle powers, strategically employ public diplomacy to redefine their national identities and enhance their international influence. Türkiye’s “The Century of Türkiye” and the Republic of Korea’s “Global Pivotal State” are slogans representing the ambitions of both countries in this regard. This chapter provides a comparative analysis of how each country’s foreign policy is shaped by the strategic use of public diplomacy, aiming to be seen as a more powerful nation rather than just a middle power. South Korea leverages cultural exports and technological advancements, such as the Korean Wave (Hallyu), to promote cultural diplomacy and foster multilateral cooperation. On the other hand, Türkiye capitalizes on its geopolitical significance and cultural heritage, using strategic media, humanitarian outreach, and educational initiatives to expand its influence, particularly in the Middle East and the Türkic circle. Both nations face the challenge of balancing complex relationships with major powers while pursuing their national interests. This chapter compares and underscores the pivotal role of public diplomacy in the foreign policies of South Korea and Türkiye in navigating today’s complex geopolitical landscapes. It accentuates the necessity for strategic adaptation, cultural engagement, and collaboration as key tools for South Korea and Türkiye to maintain and enhance their positions in a rapidly evolving and increasingly competitive global order.