Drawing from the concept of national identity in the Constructivist School of International Relations, this paper sheds light on the interaction between identity politics and pan-Asian regionalist vision in South Korea today by examining how competing political groups – the progressives, leftists and conservatives – have formulated differing regional policies and long-term goals. After showing that each group’s distinctive identities toward North Korea and the United States have influenced the formation of controversies over regionalist visions, this paper suggests that successful future community building in Asia hinges upon the creative resolution of a multilateral blueprint with existing bilateralisms in the region, and most importantly upon closer policy coordination between South Korea and the United States.