• Background: Knowledge sharing allows to the first line nurse managers understand the duties and responsibilities, organization and the top management's judgments and behaviors resulting in the first line nurse managers enhance their professional values. Aim: assessing knowledge sharing and professional values among the first line nurse managers. Design: A descriptive correlational research design was utilized. Setting: The study was conducted at Beba Central Hospital, Beni–Suef Governorate, and Egypt. Sample: A convenient sample of (78) first line nurse managers were recruited for the study. Data collection tools: Two tools were used; Tool(1): Knowledge sharing questionnaire developed by (Nasiima 2017) and adapted by the investigator to assess the knowledge sharing level among the first line nurse managers and Tool(2): professional values questionnaire developed by (Mahmoud 2021) and adapted by the investigator to assess the professional values among the first line nurse managers. Results: more than three quarters (75.6%) of head nurses had a high level of total knowledge while more than half (53.8%) of them had a high level of total nursing professional values. Conclusion: The current study concluded a moderate positive correlation between First line nurse managers' knowledge sharing and professional values. Recommendations: Creating innovative strategies for designing supportive work practice environment for nursing staff and cultivating the sense of sharing among nursing staff.
• Keywords: knowledge sharing, Professional Values, First line nurse managers.