President Pro Tempore of Union of South American Nations
Incumbent Vacant since 16 April 2019
Term length	1 year; states (alphabet) rotation
Inaugural holder	Michelle Bachelet
Formation	2008
Website	unasursg.org

Union of South American Nations
Economy Bank of the South Mercosur Andean Community Amazon Coop Treaty
Politics Secretary General Presidency Parliament
Infrastructure IIRSA Interoceanic Highway

The President Pro Tempore of the Union of South American Nations is the head position and representative of the Union of South American Nations (UNASUR). At international meetings, declarations and concerted opinions of the supranational organism are presented by the President Pro Tempore. The office is exercised for a one-year period on a pro tempore basis by one of the heads of state of each UNASUR Member State, the succession following alphabetical order.^[1] The most recent president was the President of Bolivia, Evo Morales, who served, as acknowledged by unasursg.org, between 17 April 2018 and 16 April 2019.

The attributions of the President Pro Tempore are:^[1]

To organize, invite members, and preside over UNASUR meetings, present to the Council of Ministers of Foreign Affairs the annual plan of activities of UNASUR and the meetings agenda, in coordination with the Secretary General, represent UNASUR in international meetings, with the approval of the Member States and sign declarations and agreements with third parties, after approval from the pertaining UNASUR institutions.

The presidency pro tempore directs the eight ministerial councils of UNASUR: South American Council of Health, South American Council of Social Development, South American Council of Infrastructure and Planning, South American Council of Education, Culture, Science, Technology and Innovation; South American Council of Fight against the South American Narcotráfico, Council of Defense South American, South American Council of Economy and Finances, and South American Council.

President pro tempore		Portrait	State	National party	Took office	Left office
1	Michelle Bachelet Verónica Michelle Bachelet Jeria		Chile	Socialist Party of Chile	23 May 2008	10 August 2009
			The first President of the Union of South American Nations and co-serving as the President of Chile.
2	Rafael Correa Rafael Vicente Correa Delgado		Ecuador	PAIS Alliance	10 August 2009	26 November 2010
			The second President of the Union of South American Nations and co-serving as the President of Ecuador.
3	Bharrat Jagdeo		Guyana	People's Progressive Party	26 November 2010	29 October 2011
			The third President of the Union of South American Nations and co-serving as the President of Guyana.
4	Fernando Lugo Fernando Armindo Lugo Méndez		Paraguay	Guasú Front	29 October 2011	22 June 2012
			The fourth President of the Union of South American Nations and co-serving as the President of Paraguay. Lugo resigned after being impeached as the President of Paraguay.
5	Ollanta Humala Ollanta Moisés Humala Tasso		Peru	Peruvian Nationalist Party	29 June 2012	30 August 2013
			The fifth President of the Union of South American Nations and co-serving as the President of Peru.
6	Dési Bouterse Desiré Delano Bouterse		Suriname	National Democratic Party	30 August 2013	4 December 2014
			The sixth President of the Union of South American Nations and co-serving as the President of Suriname.
7	José Mujica José Alberto "Pepe" Mujica Cordano		Uruguay	Movement of Popular Participation	4 December 2014	1 March 2015
			The seventh President of the Union of South American Nations and co-serving as the President of Uruguay.
8	Tabaré Vázquez Tabaré Ramón Vázquez Rosas		Uruguay	Socialist Party of Uruguay	1 March 2015	17 April 2016
			The eighth President of the Union of South American Nations and co-serving as the President of Uruguay.
9	Nicolás Maduro Nicolás Maduro Moros		Venezuela	United Socialist Party of Venezuela	17 April 2016	17 April 2017
			The ninth President of the Union of South American Nations and co-serving as the President of Venezuela.
10	Mauricio Macri		Argentina	Republican Proposal	17 April 2017	17 April 2018
			The tenth President of the Union of South American Nations and co-serving as the President of Argentina.
11	Evo Morales		Bolivia	Movement for Socialism	17 April 2018	16 April 2019
			The eleventh President of the Union of South American Nations and co-serving as the President of Bolivia.