Background: In a healthcare organization, servant leadership can fulfill nurses' needs effectually through prioritizing their career growth and development which may facilitate the creation of creative behavior, motivation, innovation, and satisfaction, besides facilitating sustainable behavior of them in the workplace. Aim: To investigate the relationship between servant leadership and its' role on staff nurses' creativity and sustainable development behavior. Setting: The study was implemented at neurology, cardiology, emergency and critical, pediatric, inpatients clinics, and medical departments, and intensive care units (ICUs) of Shebin El-Kom Teaching Hospital, Menoufia Governorate. Subjects: A simple random sample (428) of staff nurses with a minimum of one year of experience. Tools: Three tools were used; Servant Leadership Assessment Instrument; Employee Creativity Scale, and Sustainable Development Behavior Scale. Results: Staff nurse's response to total levels of servant leadership, creativity, and sustainable development behavior were all at a moderate level.  Conclusion: There was a highly statistically significant positive correlation between servant leadership and its' role on staff nurses' creativity and sustainable development behavior. Recommendations: Conducting an educational intervention programs about servant leadership to allow a healthy working environment.