Background: Low back pain is a common problem in pregnancy. Objective: The aim of this study was to determine the prevalence of low back pain during pregnancy and to delineate the factors associated with the development such symptoms. Material and Methods: A cross-sectional study was conducted on 178 pregnant women attended the gynecological wards and orthopedic wards in Alrefaee General Hospital, Iraq. From September 2016 to September 2017. Data was collected utilizing a self- administered structured questionnaire to determine the prevalence and the risk factors associated with low back pain during pregnancy. Results: The prevalence of low back pain during pregnancy was 55 % (98 pregnant women out of 178). Pain occurs mostly in the third trimester of pregnant women aged between 25- 34 years. Urban housewives during gravida 2 are more susceptible to moderate low back pain especially in lumbar region. Conclusion: Low back pain during pregnancy is a common problem that causes hardship in this population. Further studies are required in the areas of prevention and treatment.