Takehiko Nakao is a Japanese former civil servant who served as the ninth president of the Asian Development Bank between 2013 and early 2020. He is the Chairman of the Institute, Mizuho Research & Technologies Ltd, and a board member (external) of the Daiichi Life Insurance Ltd. He teaches international economic policies and development economics as Visiting Professor at the Graduate School of Public Policy at Tokyo University and National Graduate Institute for Policy Studies (Tokyo).

The Asian Development Bank (ADB) is a regional development bank established on 19 December 1966, which is headquartered in 6 ADB Avenue, Mandaluyong, Metro Manila 1550, Philippines. The bank also maintains 31 field offices around the world to promote social and economic development in Asia. The bank admits the members of the UN Economic and Social Commission for Asia and the Pacific, and non-regional developed countries. Starting with 31 members at its establishment, ADB now has 68 members.