United Nations Office at Nairobi

The United Nations Office at Nairobi (UNON, Swahili: Ofisi ya Umoja wa Mataifa Nairobi) in Nairobi, the capital of Kenya, is one of four major United Nations office sites where numerous different UN agencies have a joint presence. Established in 1996, it is the UN's official headquarters in Africa.

The United Nations Office at Nairobi also hosts the global headquarters for two programmes: the United Nations Environmental Programme (UNEP) and the United Nations Human Settlements Programme (UN-Habitat).

In November 2004, the United Nations Security Council held a rare session at Nairobi to discuss the armed conflicts in southern and western Sudan that constituted a phase of the Second Sudanese Civil War. The meeting was convened at the urging of then-Ambassador John Danforth of the United States.