© The Author(s) 2019. The aim of this study was to explore whether Taiwanese hospitality workers’ gender moderates the relationship between perceived ethnic diversity levels within their workplace and work-related outcomes at an individual employee level. Data were collected from 371 employees across 26 hotels in Taiwan. The results supported mediation effects of job satisfaction and affective commitment on the relationship between perceived ethnic diversity and employees’ turnover intention. Gender moderated the relationships between perceived diversity and job satisfaction, affective commitment and the relationships between job satisfaction and turnover intention. This study highlights the importance of ethnic diversity impacts on employee work outcomes within Asian hospitality organizations, specifically in Taiwan.