Purpose: Since change and change management are significant in most concepts of public management, the authors of the article identified and assessed critical factors which determine the successful implementation of change in public organizations. Design/Methodology/Approach: Firstly, the literature on change management in public organizations was reviewed, and secondly, the elicited factors were subjected to the assessment of employees of various public organizations in Poland. For this purpose, survey studies were conducted with a questionnaire, which included 13 factors in public organizations identified in the previous literature review. Findings: A literature review revealed that identifying factors most commonly indicated as necessary for success is indeed possible. Empirical research confirms that the critical factors include communication within the organization, the accumulation of sufficient resources, and the motivation of employees to embrace change. Practical Implications: The identification of factors that determine the success of change in public organizations may constitute practical recommendations for public managers in supporting employees in the process of going through a change in a public organization. Originality/Value: The presented results should be perceived as helpful for public managers in identifying the areas that need to become their point of focus in change management. Finally, the results may also serve as a basis for further research into change management in public organizations.