The UN Campus in Bonn, Germany, is seat to 18 organizations of the United Nations. It was opened in July 2006 by then-Secretary-General Kofi Annan and then-Chancellor of Germany Angela Merkel and expanded in July 2013.

The 2017 United Nations Climate Change Conference (COP23) was an international meeting of political leaders, non-state actors and activists to discuss environmental issues. It was held at UN Campus in Bonn, Germany, during 6–17 November 2017. The conference incorporated the 23rd Conference of the Parties to the United Nations Framework Convention on Climate Change (UNFCCC), the thirteenth meeting of the parties for the Kyoto Protocol (CMP13), and the second session of the first meeting of the parties for the Paris Agreement.