Workforce diversity refers to a wide range of differences among employees in organizations including, age, gender, race, religion, ethnicity, educational background, personality, tenure, cognitive style, nationality, and organizational function. Managing workforce diversity goes beyond respecting people’s differences; it entails appreciating the importance of differences, knowing, embracing, fighting prejudice, and fostering inclusiveness to improve the organization’s effectiveness. Invariably, this study explored workforce diversity in academic libraries in the University of Sierra Leone libraries and its impact on employee performance. The population of the study was drawn from employees in the three constituent campuses’ libraries and a purposive sampling method was used to collect data. The findings revealed that age, educational background, work experience and attitude dimensions can significantly influence employee generational differences and foster a learning culture within the University of Sierra Leone libraries.