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ObjectiveTo investigate possible associations of lifestyle patterns with obesity and fat mass in children.DesignCross-sectional epidemiological study. Principal component analysis was used to identify lifestyle patterns.SettingPrimary schools from four regions in Greece.SubjectsA total of 2073 schoolchildren (aged 9–13 years).ResultsChildren in the fourth quartile of the lifestyle pattern combining higher dairy foods with more adequate breakfast consumption were 39·4 %, 45·2 % and 32·2 % less likely to be overweight/obese and in the highest quartile of sum of skinfold thicknesses and fat mass, respectively, than children in the first quartile of this pattern. Similarly, children in the fourth quartile of a lifestyle pattern comprising consumption of high-fibre foods, such as fruits, vegetables and wholegrain products, were 27·4 % less likely to be in the highest quartile of sum of skinfold thicknesses than children in the first …