Abstract: This research aims at assessing technical, social and economic feasibility for the development and installation Rainwater Harvesting (RWH) as an adaptation option to water scarcity in Jerash refugees camp in Jordan. To achieve these goals, we investigated both engineering and socioeconomic aspects considering hydroclimatic and socioeconomic data. Further, expert panel of 22 experts across the country and over 15 stakeholders from the camp itself were properly consulted. Other parameters are considers including catchment area in terms of space and construction material. Different categories of rooftops are recognized in the camp ranging from metal sheet to concrete and from under 40 m² in smaller shelters to over a 100 m² in larger ones and public buildings such as schools and clinics. Another factors are the existing water supply systems in terms of quantity, quality and cost. For the water quality, water samples are collected from the existing domestic network, commercial filtered water and rainwater. In conclusion, RWH systems is technically and economically feasible and hence, it can be efficient and successful in the camp and in similar refugee camps across Jordan and therefore, water scarcity can be alleviated and the level of sanitation can be improved.