U.S. childhood obesity has reached epidemic proportions, with one third of children overweight or obese. Latino children have some of the highest obesity rates, a concern because they are part of the youngest and fastest-growing U.S. minority group. Unfortunately, scarce research data on Latinos hinders the development and implementation of evidence-based, culturally appropriate childhood obesity interventions. In response, the "Salud America!" network conducted a national Delphi survey among researchers and stakeholders to identify research priorities to address Latino childhood obesity and compare differences by occupation and race or ethnicity. The resulting first-ever National Latino Childhood Obesity Research Agenda provides a framework to stimulate research and collaboration among investigators, providers, and communities, and inform policy makers about the epidemic's seriousness and specific needs for priority funding. The agenda ranks family as the main ecological level to prevent Latino childhood obesity--followed by community, school, society, and individual--and ranks top research priorities in each level. (Contains 4 tables.)