Community engagement in water and sanitation service delivery is key for ensuring project sustainability and accountability. In all of its programmes, WSUP works with local service providers, community groups and local authorities to enhance stakeholder participation. This Topic Brief looks at community engagement approaches used by WSUP in three cities within the African Cities for the Future (ACF) programme: Antananarivo (Madagascar), Kumasi (Ghana) and Maputo (Mozambique). The specific focus is on ways to encourage community involvement in the design of water supply and sanitation projects, and ways in which service providers can elicit input and feedback from people living in low-income communities. The Topic Brief discusses several cases in which community engagement has positively contributed to the development of WASH services. It highlights some of the key challenges currently faced by WSUP and other sector organisations, and ends with practical recommendations for programme managers about how to engage low-income communities.