Violence of all types is a global public health problem. Cash-based incentives can potentially reduce violence outcomes by reducing economic hardership. We aim to deliver a comprehensive systematic review of the relationship between cash-based incentives with a variety of violence outcomes. Despite the important number of mixed evidence, we found strong and very strong evidence that cash-based interventions reduced transactional and age-disparate sex among girls, suicide, IPV victimisation, physical, emotional and sexual IPV, and physical child maltreatment.