Background: Higher organizational performance and competitiveness are linked to trust in the workplace. Also, it improves patient care and institutional operations. It improves nurses' job satisfaction, organizational commitment, and productivity, encourages cooperation, effective communication, and compensates for their inadequate skills. Aim: assessing the organizational trust and its relation to staff nurse retention in their job. Research design: A descriptive correlational research design was used. Setting: The study was conducted at the Health Insurance Hospital in Minia city, Egypt. Subjects: The sample included all staff nurses working at Health Insurance Hospitals. Their total numbers were 222 nurses. Tools: two self-administrated tools: Tool (I): Organizational Trust Scale: included two parts: Part 1: Socio-demographic data &Part 2: Organizational Trust Scale and Tool (II): Staff Nurse Retention Scale: Intent to Stay. Results: positive correlations between organizational trust of nursing staff with their intension to stay and support the domain. Also, positive correlation between trust in the supervisors with their intension to stay and support domain. Conclusion: Organizational trust is linked to intention to nurses stay and increase their support. Recommendation: to keep staff nurses in the hospital, job involvement needs to be more included, decrease workload, promote support and, quality & safety, and increase job satisfaction.