These guidelines draw on the insights and experiences of international and local organizations implementing Mental Health and Psychosocial Support (MHPSS) approaches in Gender-Based Violence (GBV) programming in Lebanon, as well as existing best practice GBV resources available regionally and globally. They were developed following an assessment on MHPSS approaches in the GBV sector conducted between December 2023 and February 2024. The assessment consulted with GBV organizations and beneficiaries to inform approaches used, best practices, lessons learned and suggestions.