In spite of the differences in human resource management (HRM) practices between the non-profit health care sector and business life, the majority of health care sector research appears to be based on the HRM (for human resources management) blueprint for business life staff policy and practice. This study is aimed to better understand the impact of workplace social support in the context of French hospitals. Concrete, the first objective of this article comprises a thorough conceptualization and operationalization of workplace social support (i.e. both professional and personal social support). Data were collected in a French hospital among a sample of 62 respondents (for the qualitative part of our study), and among a sample of 171 health care professionals (nurses and nurse aids) (for the quantitative part of our study). Our outcomes indicate that, especially, personal support given by one's supervisor is strongly and positively related to nurses' and nurse aides' affective commitment. After a discussion about the outcomes, followed by some recommendations for future research, the article concludes with some practical implications for management in hospitals.