International management research has tended to approach the transfer of human resource management (HRM) practices by examining the one-way transfer from parent companies to their subsidiaries, their adaptation to the subsidiaries' local context and, more recently, the reverse transfer of HRM practices from subsidiaries to their headquarters. This article aims to analyse the transfer of HRM practices from headquarters to their foreign subsidiaries through the process of hybridization. Although numerous studies focus on the transfer of HRM practices between economically developed countries or from these countries to transitional economies, few have considered French multinational corporations (MNCs) operating in excolonized countries. This paper addresses the ways in which the HRM hybridization process is implemented in two French subsidiaries operating in Tunisia. It focuses on the dual perspectives of managerial staff at headquarters and subsidiaries as well as shop floor employees in the subsidiaries. A range of HRM practices (recruitment and selection, compensation, performance appraisal and career management) is analysed from their transfer to their reinterpretation. The results show the importance of the concept of hybridization on HRM practice transfer through a multi-level analysis of the strategies used by various stakeholders during the hybridization process. The paper also provides useful insights into the factors of hybridization that may foster or inhibit the transfer and adoption of HRM practices by foreign subsidiaries. These include the relational context, the type of practices transferred, the interests of different professional categories and their social interactions. Based on these factors, several hybridizations are identified. The study points out the specificity of the Tunisian context and shows that institutional factors have less influence on the transfer of HRM practices in ex-colonized countries than cultural factors that have a transversal influence on different HRM practices. Key cultural factors constraining the transfer include emotional relationships and interpersonal trust. Moreover, the international transfer of HRM practices from MNCs to ex-colonized transitional countries requires taking into account the post-colonialism and fascination effects.