Regional economic integration schemes abound in Latin America, yet very little is known about the degree of popular support for such programmes. Now that democratic regimes rule in almost all of Latin America, public opinion can have an important impact on national policies. This paper examines the attitudes toward economic integration in 17 mainland Latin American countries with interview data from over 18,000 people. Bi-variate and multivariate analyses are conducted on the factors related to support for regional integration. Perceived benefits of integration and perceptions of personal and national economic situation prove to be important factors, as are higher levels of education, support for democracy and gender (males favour integration more than females). Two novel findings are that a positive opinion of the European Union along with satisfaction with the functioning of democracy are both linked to greater support for integration.