This paper examines the role of mobilising political will in establishing the conditions necessary for economic and social inclusion of refugees, internally displaced persons, and formerly displaced persons who achieve durable solutions such as voluntary return. It investigates the role and conditions to mobilise political will for more comprehensive and inclusive policies that can lead to long-term local development in contexts of forced displacement in low- and middle-income countries (LICs and MICs). Case studies from Bangladesh, Cameroon, Ecuador, Iraq and Lebanon illustrate the ways in which political will, or its absence, can shape the approach to supporting the forcibly displaced and hosting communities. The paper also proposes a conceptual model for mobilising political will to facilitate sustainable development support in contexts of forced displacement.