Dataset for anonymous questionnaire regarding caregiver views of childhood obesity prediction. These data pertain to respondents' views on the causes and prevention of childhood obesity. The questionnaire was distributed online via Qualtrics. Respondents were parents, caregivers, and grandparents of New Zealand-based children aged 5 years and under. Ethical approval for the study and publication of these data was granted by the University of Auckland Human Participants Ethics Committee (#020912).