Abstract: The purpose of this study is to check the mediating effect of organizational commitment on the relationship between HR practices and corporate entrepreneurship. This study develops a mediation model in which high-performance human resource practices affect corporate entrepreneurship through organizational commitment in a sample of 250 employees working in telecommunication sector of Saudi Arabia. The findings of the study showed that high-performance human resource practices are positively related to corporate entrepreneurship and this relation is mediated by organizational commitment. The findings of the study conveyed that HR practices can affect the attitude and behavior of the individuals in organizations ultimately affecting the organizational outcomes. Moreover, this study suggests that the impact of HRM practices may operate through a path which connects organizational commitment and corporate entrepreneurship.