Coordinated, age-responsive essential services are required for the prevention and response to GBV to mitigate the adverse impacts of violence on adolescent girls in a way that is specific to their realities. Following the guiding framework of the Essential Services Package, the current paper is an effort to provide an initial mapping into the availability and delivery of GBV essential services for adolescent girls and to provide recommendations to strengthen GBV prevention and response services for adolescent girls in the Arab region. The study is targeted at policy-makers, researchers, programmers, civil society and other professionals in the field of gender-based violence and in adolescent girls programming.