Objectives: The purpose of this paper is to examine the role of Green Behaviour (GB) in relationship amid Green Human Resource Management (GHRM) and Employer Branding (EB) in Selected Green Hospitals. Methods: This empirical research examines dual directions of considered variables The GHRM is studied by adopting the 24-item scale with 6 factors (scale reliability varies from 0.804 to 0.814). GB is measured by adopting 6 item scale with 2 factors (reliability ranges from 0.821 to 0.834). To examine perceived EB, 23 item scale with 6 factors (reliability varies from 0.813 to 0.817) were applied. The responses were collected using convenience sampling through the e-mail survey and 384 valid responses (Health Care Professionals in Selected Green Hospitals) were considered. Data Analysis is carried out in dual stages viz., scale validation for all considered variables and Sobel test is carried out to examine the mediating role of GB amid GHRM and EB. Findings: The results of the analysis explored that mediation investigation were satisfied and reinforced, it also noted that after removal of mediating variables (GB), the β weight of the GB is reduced from 0.899 to 0.706 which is significant. Hence, GB acts as a partial mediator in relationship amid GB and EB which is confirmed by sobel test. Novelty: The examination of the GB practices as a mediating role amid GHRM and EB in a single study is a uniqueness of this research.