Néstor Osorio Londoño became Colombia's Ambassador to the United Kingdom of Great Britain and Northern Ireland in February 2014 and retired in mid 2019.  After a career as an administrative lawyer, he served as the first Permanent Representative of Colombia to the World Trade Organization (WTO) in Geneva from 1995 to 1999. He was Executive Director of the International Coffee Organization from 2002 to 2010, where he had represented Colombia since 1978 when he was named Alternate Delegate and later becoming head of mission and Permanent Representative until 1994. After leaving the WTO, he worked for the Colombian Government as High Advisor for Coffee Policy from September 2000 until his election as Executive Director of the ICO. In November 2010, Osorio became Colombia's Permanent Representative to the United Nations in New York. During April 2011, Colombia held the rotating presidency of the UN Security Council, and Osorio was the Council's president.