["Corporate Social Responsibility and Environmental Management, EarlyView. ", "\nABSTRACT\nThis study examines the effect of green transformational leadership (GTL) on green employee voice (GEV) in the tourism sector. In addition, drawing on Social Learning Theory, it determines how leaders influence employees' proactive environmental behaviors and identifies the mediating roles of green psychological climate (GPC) and green work engagement (GWE) in this relationship. For this purpose, data were collected from tourism employees in two provinces in Türkiye (Karaman and Antalya). Study 1 adapted research scales that had not previously been translated into Turkish, while Study 2 tested the research hypotheses. In addition to the analyses conducted using SPSS and AMOS, a serial mediation model (Model 6) was also analyzed using PROCESS Macro. According to the findings, GTL significantly affected GWE, GPC, and GEV. While GWE mediated the effect of GTL on GEV, GPC did not mediate this relationship. In addition, GPC and GWE assumed a sequential mediating role in the effect of GTL on GEV. Accordingly, it was concluded that leadership practices promoting an environmental climate and engagement strengthen pro‐environmental voice behavior. Therefore, the study demonstrates how sustainability goals in tourism are supported by integrating GPC and GWE into a single framework explaining the process from green leadership to employee behavior.\n"]