Background: Obesity has remained as a main health problem and substantially increased during the last decade the aim of this study is the comparison of obesity, central obesity and WHR obesity among 15-70 years between Turkman and non-Turkman ethnic groups in Golestan Province (north of Iran) in 2013. Methods: This was a cross-sectional study with 464(Turkman =166 and non-Turkman=298) subjects whose were chosen randomly from 23 clusters. Subjects with a BMI (Body Mass Index) of <25 , 25.0-29.9 , 30-39.9 and ≥40 kg/m2 were classified as normal, overweight, obese and pathologic obese. Central obesity was measured by waist circumference of WC > 102 cm in men and >88 cm in women. WHR (Waist-to-Hip ratio) equal 0.95 or over and 0.8 or over was classified as WHR obesity for men and women, respectively. Results: General obesity and overweight were seen in 30.0% and 28.2% of subjects, respectively. In non-Turkman group, obesity was statistically significant between genders (men=19.4 and women=43.9 )(P=0.001) while it was not significant in Turkman group (16.4% vs 30.0%). Prevalence of central obesity was seen in 40.7% with a significant difference between genders (22.9% vs 54.4%) (P=0.001). Compared with Turkman group, the prevalence of central obesity in men and women was 12% and 19.2% more in non-Turkman group, respectively(P=0.003). In the whole, WHR obesity was common 62.7% and 63.1% in men and women, respectively. Odds ratio for general obesity and central obesity were 2.791 and 4.021 times more in women than in men, respectively. Compared to women in Turkman group, odds ratio for general obesity in non-Turkman women was 1.826 (P=0.025) and for central obesity was 2.096 (P=0.004). Pearson correlation between age and BMI, WC and WHR was seen (r=0.478, P=0.01), (r=0.596, P=0.01) and (r=0.385, P=0.01), respectively. Conclusion: Finally, obesity, central obesity and WHR obesity are the main health problem in the north of Iran and it was prevalent in non-Turkman more than in Turkman groups.