Background: One of the greatest underlying factors in the success or failure of any organization is the power of its people; this power can be from the more delegation of authority for employee which increases their job involvement. Thus, it is significantly for any health organization to implement strategies that increase job involvement and delegation of authority. The aim: of this study was to investigate the relation between delegation and job involvement among staff nurses in selected hospitals at Minia governorate. Design: A descriptive correlational research design was used to achieve the aim of the present study. Sample: was included all staff nurses working in all departments of two hospitals during the period of data collection (N=245), Setting: The study was conducted at Elfkrea Hospital in Abo Korkas district and Samalot hospital in Samalot district in El-Minia governorate. Data collection Tools: Data was collected through the utilization of two tools; Delegation Questionnaire and The job involvement Scale. Results: the majority of staff nurses explore the responses toward low level regarding delegation and job involvement (85.2% and 73.9%) in El-Fekria and (95.4 and 80%) in Samalot hospital. Conclusion: It concluded that the majority of staff nurses have had low level regarding delegation and job involvement in El-Fekria and Samalot hospital. There were a positive correlation between delegation of authority and its dimensions “efficiency, effectiveness, empowerment and delegation process of head nurse and job involvement. Recommendations: Periodical training programs should be conducted to all head nurses and staff nurses to increase their knowledge and competencies regarding the delegation and job involvement.