This report explores the existential position of the Korean diaspora between their home country and host country, as well as the practical implications of the Korean diaspora for peacebuilding in the context of the historical conflicts and enduring division on the Korean Peninsula. The report examined examples of the Korean diaspora’s role in peacebuilding on the Korean Peninsula, including the third identity of Koreans in Japan, the peace movement of Korean-American women, and the North and South Korean defector community in the UK. By looking into these cases, the report provided reflections on how to prepare for the integration of people and the structural and cultural transformation that peacebuilding implies in the mid- to long-term.