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.

Mandaluyong, officially the City of Mandaluyong, is a first class highly urbanized city in the National Capital Region of the Philippines. According to the 2020 census, it has a population of 425,758 people.