This article provides a systematic review of literature that attempts to quantify the rate and magnitude of gender-based violence (GBV) in emergency settings. The data collected identified that the undertaking of prevalence studies of GBV instances is not yet routine in humanitarian practice. Intimate partner violence (IPV), physical violence, and rape were the three categories of violence most frequently measured. The authors argue that GBV programmes need to ensure that strategies are in place to reach those who suffer from GBV in their home and call for the professionalisation of international protection in the field.