The aim of this study is to examine the mediating role of knowledge sharing in the relationship between high-performance work systems and employee creativity. Surveys based on questionnaires were utilized for the purpose of empirical analysis, comprising a survey of Jordanian banks, we test proposal hypotheses using structural equation modeling (SEM). The results indicate the relevance of high-performance work systems as a mechanism for improving employee creativity. It also demonstrates that knowledge sharing plays a mediating role in the link between HPWS and employee creativity. As a result of the study of the mediation mechanisms, this paper has made a significant contribution to employee creativity and provides deeper insights into the correlation between HPWS, knowledge sharing, and employee creativity.