Gender is a key determinant of health and healthcare use. The question of whether physicians are aware of gender issues is important to avoid gender bias in medical practice. This study aimed to validate the Nijmegen Gender Awareness in Medicine Scale (N-GAMS) in a representative population of French general practitioners (GPs) and to analyze their gender sensitivity and the presence of gender stereotypes among them. The N-GAMS, already validated in medical students, measures gender awareness through 3 subscores: gender sensitivity (GS) and gender-role ideology towards patients (GRIP) and doctors (GRID) (gender stereotypes). After translation into French, it was distributed to 900 GPs. The scale was validated through exploratory factor analysis (EFA). Psychometric properties were tested. Multivariate linear regressions were conducted to explore the associations between GPs' characteristics and N-GAMS subscores. EFA identified 3 meaningful factors consistent with prior theory. Subscores exhibited good internal consistency. The main findings were that GRIP was significantly higher in older physicians, in male physicians, among those who less involved their patients in decisions, and those who were not training supervisors. For GRID, results were quite similar to those of GRIP. GS was significantly higher for physicians working in health centres or medical homes and for those with gynecological practices but lower when they less involved patients in medical decisions. This study suggests that it is necessary to teach gender issues not only in medical schools but also as part of continuing medical education.