Of the various agencies of the United Nations, the oldest one is: Posted by: Sidra Amir Posted on: January 19, 2020 A. International Labour Organisation ILO B. Universal Postal Union UPU C. World Health Organisation WHO D. World Meteorological Organisation WMOShare this...FacebookPinterestTwitterLinkedinRelated posts:Of the various agencies of United Nations, the oldest one is The first international organization was: What was Pan-Islam, originated in 1880 in Ottoman empire? What was Pan-Islam, originated in 1880 in Ottoman Empire? Which International agency supervised Indus Basin Treaty, 1960 between Pakistan and India? At the time of Lucknow pact, Quaid-e-Azam was: The name United Nations was coined by: Which one is not the official language of United Nations? The 1st Asian secretary general of united nations was? The 1st Asian secretary general of united nations was?