Nina Lucine Hachigian is an American diplomat who served as the first U.S. Special Representative for City and State Diplomacy under Antony Blinken in the Biden administration.

Prior to this, Hachigian served as the United States Representative to the Association of Southeast Asian Nations (ASEAN) with the rank of Ambassador Extraordinary and Plenipotentiary.

The Special Representative aims to bring the benefits of U.S. foreign policy, such as jobs, investments, innovative solutions, and international experiences, to the local and state level.

It supports U.S. national security priorities by integrating local ideas into foreign policy and fostering connections among cities, municipalities, and communities in the United States and abroad.

The Mission's five priorities in the U.S. relationship with ASEAN are supporting economic integration, expanding maritime cooperation, cultivating emerging leaders, promoting opportunity for women, and addressing transnational challenges.

Her responsibilities included supporting ASEAN as it moves toward economic integration in 2015 and advocating for the systemic changes necessary to promote peaceful and prosperous growth in the region.