21 Members (excluding the associate or suspended members but including the countries represented on their behalf) [The rulers are not necessarily the representatives in the organisation. ] :
 |  | ARGENTINE | (Buenos Aires a + Olivos r) |  | President Mauricio Macri |  | |
 |  | BOLIVIA | (Sucre cj + La Paz eir) |  | President Evo Morales | | |
 |  | BRAZIL | (Brasilia) |  | President Michel Temer | | |
 |  | CHILE | (Santiago of Chile a + Valparaiso l + Vina del Mar s) |  | President Michelle Bachelet | | |
 |  | COLOMBIA | (Bogota) |  | President Juan Manuel Santos | | |
 |  | COSTA RICA | (San Jose) |  | President Luis Guillermo Solis Rivera |  | |
 |  | CUBA | (Havana) |  | Raul Castro | | |
 |  | DOMINICAN | (Santo Domingo de Guzman) |  | President Danilo Medina | | |
 |  | ECUADOR | (San Francisco of Quito) |  | President Lenin Moreno | | |
 |  | GUATEMALA | (Guatemala City) |  | President Jimmy Morales Cabrera | | |
 |  | HONDURAS | (Tegucigalpa a + Comayaguela c) |  | President Juan Orlando Hernandez | | |
 |  | HAITI | (Port Au Prince) |  | President Jovenel Moise | | |
 |  | ITALY | (Rome a) |  | President Sergio Mattarella |  | |
 |  | MEXICO | (Mexico City) |  | President Enrique Pena Nieto | | |
 |  | NICARAGUA | (Managua) |  | President Daniel Ortega | | |
 |  | PANAMA | (Panama City) |  | President Juan Carlos Varela | | |
 |  | PERU | (Lima a + Arequipa d + Cusco h) |  | President Pedro Pablo Kuczynski | | |
 |  | PARAGUAY | (Assumption) |  | President Horacio Cartes | | |
 |  | EL SALVADOR | (San Salvador) |  | President Salvador Sanchez Ceren | | |
 |  | URUGUAY | (Montevideo) |  | President Tabare Vazquez | | |
 |  | VENEZUELA | (Caracas) |  | President Nicolas Maduro | | |
