The National Collaborative on Childhood Obesity Research (NCCOR) hosted a webinar featuring its Measures Registry, a searchable online registry of diet and physical activity measures relevant to childhood obesity research. The Registry includes almost 750 measures in four domains: individual dietary behavior, food environment, individual physical activity, and physical activity environment. This webinar describes the features and functions of the Registry and explain how the Registry works to promote the consistent use of common measures and research methods across childhood obesity prevention and research.