The Global Partnership on Output-Based Aid (GPOBA) is a partnership of donors and international organizations working together to support output-based aid (OBA) approaches.

OBA is an innovative approach to increasing access to basic services—such as infrastructure, healthcare, and education—for the poor in developing countries. It is used in cases where poor people are being excluded from basic services because they cannot afford to pay the full cost of user fees, such as connection fees. This supports PPP projects because OBA helps ensure the viability of a PPP by absorbing the cost of access to a particular public service for the target population.