Abstract: dark side of leadership. It is a remarkable attitude including various mistreatment behaviors of the head nurses. Abusive supervision not only damaged organizations but also damaged staff through job tension, emotional exhaustion and affects the reactions of nurses to workplace mistreatment. Purpose: To assess head nurses' abusive supervision levels from staff nurses' perspective. Method: A descriptive design was utilized. The study was conducted at all critical care units and departments at Menoufia University Hospitals and National Liver Institute at Shebin El-Kom city/ Menoufia Governorate. Simple random sample of 560 staff nurse constituted the study sample. One instrument was used: Abusive supervision dimension from Toxic Leadership Scale. Results: Head nurses' showed low abusive supervision level from staff nurses' perspective at the hospital settings (17.1± 3.6; Range: 7-35). Conclusion: The study emphasized that the highest percentages of studied staff nurses perceived low level of abusive supervision from their head nurses in the mentioned study settings. Recommendation: Future training of head nurses in terms of behaviors and ethical standards in management and leadership before upgrading to leadership roles.