Ageism is a common phenomenon in the workplace, despite being unethical. Although previous studies have explored the many negative effects of ageism on employees, employee silence has rarely been empirically tested as a negative outcome. Therefore, we explored the positive relationship between ageism and employee silence and its underlying mechanism. A total of 416 working adults completed two time-lagged surveys, with items measuring ageism, work alienation, organizational commitment, and employee silence, administered four weeks apart. The results indicate that work alienation (...) and organizational commitment have serial mediating effects on the relationship between ageism and employee silence. Ageism led to employees experiencing more work alienation, leading to harmful consequences for their organizational commitment and to employee silence. We discuss the theoretical and practical implications of our findings in this paper. (shrink)