Occupational stress in nursing is common worldwide; with rates of 9.20%-68.0% of nurses suffering from stress being reported in the worldwide literature. This thesis reports an investigation into stress among hospital nurses in Sohar Hospital in Oman. The purpose of this study was to determine the main causes of occupational stress among hospital nurses in Sohar Oman. A quantitative survey design was employed, with a self-administered questionnaire pack being the data collection technique. Data were collected on psychological distress, depression, sources of stress and demographic variables. Data were analyzed by SPSS using a variety of descriptive and inferential statistical methods: T-test, one way ANOVA and logistic regression were employed. The study population is the entire cohort of nurses who were working in Sohar Hospital during the period from Dec 2015 through May 2016