The Regional Assessment report highlights how diasporas from South America are contributing to the development of their countries of origin, and how these countries can work with diaspora communities to maximize their impact. This multilevel study gathered primary data from six countries using a common participatory methodology and tools, which included more than 120 interviews and several focus groups with representatives from the government, civil society, and diaspora communities in each country. In addition, a virtual regional survey collected 1,173 responses from members of the diaspora and others. This study gives us a detailed and nuanced understanding of the evolution and contribution of South American communities around the world, as well as their perspectives and identities.