This article examines the ways in which Christian and Muslim organizations implement humanitarian assistance for internally displaced people in Jos, a city in north-central Nigeria that has become a hotbed of sectarian violence over the last ten years. The case study of Jos is particularly pertinent since it contributes to our understanding of how faith-based organizations negotiate the provision of humanitarian services to conflict-affected communities where they are also protagonists in the conflict. This article examines faith-based humanitarianism by focusing on the structure of relief operations, sources of funding, selection of aid recipients, and the nature of services offered by Christian and Muslim organizations. The article notes that although most faith-based organizations in Jos adopt a faith-centred approach to aid giving, thereby focusing their relief efforts on supporting their own faith communities, structures of inter-faith partnership in aid giving are beginning to emerge.