Sex and gender are important considerations within refugee studies. Risks to health and wellbeing may manifest differently for refugee women and men, as may the use of health and social services and responses to interventions. Since the 1980s, increased attention has been paid to the experience of girls and women in refugee and humanitarian research, however, much less attention has been paid to boys and men. The purpose of this systematic scoping review was to investigate whether there is a gender bias in refugee and humanitarian research on refugee trauma.