A link between higher rates of childhood obesity and deprivation has been noted in the UK, as well as several other European countries and the US. The drivers of obesity are complex and multi‐factorial, but socially and economically disadvantaged groups may be more vulnerable to many of these. Evidence that rates of obesity are rising faster in low‐income population groups, resulting in widening inequalities indicates that prevention policies must take account of socio‐economic factors. It has been suggested that community‐wide approaches placing less emphasis on individual responsibility or ‘agency’ (i.e. have less emphasis on aspects that require cognitive, psychological and material resources and time) can be more effective and equitable. This paper outlines examples of community approaches that may have contributed to the reported reductions in childhood obesity in some areas, particularly amongst deprived groups including Health, Exercise and Nutrition in the Really Young in Leeds, UK; Ensemble Prévenons l'Obésité Des Enfants and Amsterdam’s citywide Healthy Weight Programme. The policies enacted that improved the nutrition environment and increased opportunities for physical activity in four US sites (the Childhood Obesity Declines project) are also considered. It is clear that there is no silver bullet for tackling childhood obesity. A whole systems approach that takes into account more holistically the reasons why healthy diet and lifestyles may be less available to families on low incomes is needed.