Background:Workplace bullying is a psychosocial and organizational problem within the health care system, which affect negatively in nurses' organizational trust and their turnover intention. Aim: Assess workplace bullying and its effect on organizational trust and turnover intention among nursing staff. Design: A descriptive correlational design was utilized to achieve the objective of the present study. Sample: A stratified random sample of 301 nurses were selected from Minia university hospitals. Setting: This study was conducted at Minia university hospitals, At Minia city. Egypt. Tools: four tools were utilized in this study: I: Socio-demographic Data , II: Workplace Bullying Questionnaire, III: organizational trust questionnaire and, IV: turnover intension questionnaire Results: Illustrates that about two third of staff nurses had the highest percentage level regarding workplace bullying, and less than two third of them had the lowest percentage level regarding the organizational trust and more than two third of them had the highest percentage level regarding turnover intension. Conclusion: The conclusions of the current study showed that, there were strong a positive correlation between workplace bullying and turnover intension. While there were a negative correlation between work place bullying and organizational trust, and a negative correlation between turnover intension and organizational trust for study subjects. Recommendations: health care organization should encourage supervisors to use effective communication skills and inspire perspicuous standards and guidelines to identify and battle workplace bullying to improve organizational trust and reduce turnover intention among nursing staff.