List of Secretaries General of UNASUR

Name		State	National party	Took office	Left office
1	Néstor Kirchner Néstor Carlos Kirchner	Argentina	Front for Victory—Justicialist Party	4 May 2010	27 October 2010
		The first Secretary General of the Union of South American Nations and died in office.
Post vacant by death
2	María Emma Mejía María Emma Mejía Vélez	Colombia	Alternative Democratic Pole—Colombian Liberal Party	9 May 2011	11 June 2012
		The second Secretary General of the Union of South American Nations.
3	Alí Rodríguez Alí Rodríguez Araque	Venezuela	United Socialist Party of Venezuela	11 June 2012	Incumbent
		The third Secretary General of the Union of South American Nations.