We draw on gender role theory to examine the relationships among employee-rated work–family conflict, supervisor perceptions of employee work–family conflict, employee gender and supervisor-rated job performance. We found that the relationship between employee-rated work–family conflict and supervisor perceptions of employee conflict varied based on both employee gender and the direction of conflict under consideration. Specifically, the relationship between the two rating sources (employee and supervisor) was stronger for male employees when conflict was considered. However, the relationship between the two rating sources was stronger for female employees when family-to-work conflict was considered. Supervisor perceptions of employee work–family conflict were negatively related to employee job performance ratings. More generally, we found support for a moderated mediation model such that the relationship between employee-rated work–family conflict and job performance was mediated by supervisor perceptions of employee work–family conflict, and the effect was moderated by employee gender. Implications for research and practice are discussed.