This study examines the dynamic relationship between green human resource management (green HRM), environmental performance (EP), green employee behavior (GEB), and environmental knowledge and awareness (EKAW) within the Egyptian hospitality sector context. Using Pearson correlation coefficients and regression analyses on a sample of 400 staff members from hotels and tourist villages in Egypt, the study examines green HRM practices’ influence on EP, mediated by GEB and EKAW. The findings reveal significant positive correlations between green HRM practices and these mediators, indicating that comprehensive environmental strategies and incentive management are pivotal in promoting eco-friendly practices among employees. The study further confirms GEB and EKAW’s substantial mediating roles in enhancing EP. The results also suggest that while EKAW and GEB independently contribute to EP, their interaction, and the role of environmental awareness as a potential mediator warrant further examination. This research contributes to the literature on sustainable business practices by underscoring human resource strategies’ integral role in achieving environmental sustainability goals, highlighting the importance of incentivizing green practices, and cultivating an organizational culture prioritizing EKAW. These insights are precious for organizations seeking to enhance their ecological footprint through effective green HRM practices.