To date, there has been insufficient focus on age and sex differences in studies of violence amongst adolescents and young adults in low- and middle-income countries. As adolescence is a formative period during which experiencing violence can have both short- and long-term consequences, we aim to investigate experiences of violence by age and sex across five countries. Incidences of past-year violence victimization were estimated by sex across two-year age bands 13—24 years using Violence Against Children Survey datasets from Cambodia, Haiti, Kenya, Malawi, and Tanzania. Analyses were conducted separately for each country.