Néstor Osorio Londoño (born 7 August 1947) is a Colombian diplomat who was the former Ambassador of Colombia to the United Kingdom of Great Britain and Northern Ireland and former Permanent Representative to the United Nations.

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.

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.

[1][2][3] In November 2010, Osorio became Colombia's Permanent Representative to the United Nations in New York.

In March 2011, during the discussion regarding the unrest in Libya, he strongly advocated for foreign military intervention, which resulted in ousting of ruler Muammar Gaddafi, starting a civil war in the country.