The central concept in this study is people management, referring to line managers’ implementation of HR practices and their leadership behaviour oriented at supporting the employees they supervise at work. In this study we conceptualize people management and develop a multidimensional scale to measure it from the perspectives of both employees and line managers. Using a Study 1/Study 2 design, including two-wave multilevel data from employees and line managers of a financial service provider, and cross-sectional data from teachers, educational support staff, and supervisors, we demonstrate the scale’s reliability and multidimensionality across samples and over time. We provide evidence of the convergent validity by showing that employees’ and line managers’ perceptions of people management are significantly related, and that people management is significantly related to transformational and transactional leadership. Also, we demonstrate that people management adds explained variance above and beyond transformational and transactional leadership in predicting team performance. We demonstrate criterion-related validity through people management’s relationship with job satisfaction, commitment, and work engagement. We discuss the implications of our measure for theory and research on people management, its antecedents, and its effects.