© 2015,Gulhane Military Medical Academy. All rights reserved.Obesity in childhood is increasing and becoming a major public health problem in the last years in Turkey.The aim of the study was to find out the prevalance of childhood overweight and obesity among Turkish second grade of schoolchildren. The data was collected from 53 cities in 12 NUTS Area in May- June 2013. This study is a cross-sectional study, overweight and obesity prevalance were calculated by using WHO criteria. The numbers of the children in the sample were 5600. Out of 216 schools, 43 were from rural settlements and 163 from urban settlements. The target age group of the study was 7-8 years age children at second grade of the schools. Out of all children at the schools, 88.8% of the children had parent consent for antropometric measurements. The antropometric measurements were conducted by by trained health staff using standardized equipment. Out of all the children in the sample, 88.5% of them was analyzed. Out of the children, 49.9% were girls and 52.7% were seven years old. According to WHO Criteria, the prevalance of overweight were 14.5% (95% CI 13.1-15.9) and the prevalance of obesity was 8.6% (95% CI 7.52-9.67) among 7 years age children. These figures were respectively 13.9% (95% CI 12.5-15.3) and 8.0% (95 % CI 6.90-9.09) among 8 years age children. Prevalance for overweight and obesity were different by gender and residence. Boys and children living in urban settlements were more frequently overweight and obese. Overweight and obesity prevalance showed differences by NUTS Regions. Istanbul and East Blacksea NUTS Regions had the highest figures among all regions (15.9% CI 13.4-18.4; 18.3% CI 11.5-25.1, respectively). These findings shows that there is an urgent need to develop obesity prevention program for children in the country.