The increasing prevalence of overweight & obesity and its related disorders with diabetes was the aim of present study in Miyandoab city / West Azerbaijan province / north-west of Iran which has been chosen because of the lack of available documents about the prevalence of overweight, obesity and diabetes in this city. A cross-sectional study that was done emphasizing on overweight to determine its association with diabetes. The sample of the study included 84 patients referring to nutrition ward of Fatimah Hospital, who were matched in BMI, gender, age group and educational status. The data included demographic and anthropometric parts. Its validity and reliability was confirmed. The data was analyzed by SPSS20 chi-square test, and p<0.05 was considered the significant level. Eighty four patients, females (n=58; 69% of samples) and males (n=26; 31% of samples) entered in this study. The date of the study was from September 2011 up to April 2012.