Background: Organizational dissent, assimilation and organization reputation are very important elements for
successful management and existence of healthcare organizations. Aim: to investigate the correlation between
organizational dissent, assimilation and organization reputation as perceived by nursing staff at Main Mansoura
University Hospital. Methods: Descriptive cross-sectional study design was used with 253 participants from nursing
staff at Main Mansoura University Hospital. Data was collected by using three scales that are Organizational Dissent
Scale, Organizational Assimilation Scale and Organization Reputation Scale Results: according to the perception of
nursing staff , upward dissent represented the uppermost mean among dissent dimensions, acculturation represented the
highest mean among organizational assimilation dimensions and product and services was the highest mean score among
organization reputation dimensions as perceived by nursing staff at Main Mansoura University Hospital. Conclusion:
There was highly significant co-relation between upward dissent and organization reputation and, there was highly
significant co-relation between organization reputation and organizational assimilation. Recommendations: Encourage
variety of open links of communication through open-door policies, regular meetings and suggestion boxes. Develop a
comprehensive program including orientation sessions, job-specific training and mentorship programs to strength new
staff assimilation. Engage nursing staff in the hospital's mission and vision through regularly communicate their mission
and vision to nursing staff.