Open Finance in Latin America and the Caribbean: Great Opportunities, Large Challenges concludes more than one year of surveys, studies, and analysis about the open finance ecosystem in Latin America and the Caribbean. This research is a collaborative effort between the Financial Data and Technology Association (FDATA) and the Inter-American Development Bank (IDB) through our FintechLAC initiative. Through the development of this study, we also received cooperation from the Latin American Federation of Banks (FELABAN), Fintech Iberoamérica, 39 fintech companies, and financial authorities from the region. Without their inputs and data, this text would not have been possible.