Background: Shared leadership is a nursing management model that supports staff nurses in extending their influence about decisions that affect their work environment, professional development, and self-fulfillment that resulted in improve staff nurses′ performance. This study aimed to: Assess shared leadership as perceived by staff nurses and its relation to their performance. Design: A descriptive correlation design was utilized to conduct this study. Setting: Conducted in all inpatients Medical and Surgical Departments/ Units at Benha University Hospital. Subjects: Consisted of simple random sample of staff nurses, included 322 of them. Tools: two tools, Ι: Shared Leadership Survey, Π: Staff Nurses Performance Observational Checklist. Results: Show that more than half (52.2%) of head nurses had fair level of shared leadership as perceived by staff nurses. While about half (50.9%) of the staff nurses had moderate level of performance. Conclusion: There was a highly statistically significant positive correlation between head nurses' shared leadership as perceived by staff nurses and their performance. Recommendations: Holding presentations for the nursing staff to educate them on the shared leadership system and practice and foster an inspiring work environment, create a new promotion structure that places more emphasis on skills and performance than on prior experience, and tie bonuses to accomplishments.