Abstarct: The present study aimed to examine the effect of Green Human Resource Management and green transformational leadership on sustainability in higher education, with top management commitment as a mediating variable. In this study, Green Human Resource Management included two dimensions: green recruitment and selection, and green training and development. In terms of purpose, this research is applied, and in terms of methodology, it is a descxriptive-survey and correlational study. The statistical population consisted of all faculty members of Shahrood University of Technology. Using Cochran’s formula, the sample size was determined as 182 respondents. Data were collected through a standardized questionnaire baxsed on a five-point Likert scale. The validity of the instrument was confirmed through factor loadings, convergent validity, and discriminant validity, while reliability was assessed using Cronbach’s alpha and composite reliability. Data analysis was conducted using SPSS and SmartPLS through Partial Least Squares Structural Equation Modeling. The findings showed that green recruitment and selection, green training and development, and green transformational leadership had significant positive effects on sustainability in higher education. These variables also had significant positive effects on top management commitment. Moreover, top management commitment had a significant positive effect on sustainability. The mediation results indicated that top management commitment significantly mediated the relationship between green training and development and sustainability, as well as the relationship between green transformational leadership and sustainability. However, its mediating role in the relationship between green recruitment and selection and sustainability was not supported.