This article reviews the evidence on the prevalence and determinants of post-traumatic stress disorders among internally displaced people in sub-Saharan Africa. The review covers studies in English published up to June 2023 that estimate the prevalence of PTSD (Post Traumatic Stress Disorder) in sub-Saharan Africa. The authors identified 11 studies that meet the inclusion criteria. The studies covered over 11,000 participants from 14 sub-Saharan African countries including Nigeria (4 studies), Ethiopia (3 studies), Sudan (3 studies), Somalia, the Central African Republic, Uganda, and Kenya.