Knowledge is one of the most important intangible assets and a major tool in decision making in modern societies. Inhabitants' knowledge acquisition is an important social and economic force that will drive change in any society by enabling the implementation of innovative ideas and practices. A review of the research background shows that despite the usability of inhabitant knowledge, for the time being, the degree to which the process of inhabitants' knowledge acquisition integrated into the public policy-making system is still ambiguous. Therefore, the aim of this thesis was to investigate the effective techniques for inhibitants knowledge acquistoin, and the enablers that affect the process of inhabitants' knowledge acquisition in the public policy-making organizations from the perspectives of policy-makers After a comprehensive review of the previous study, the study found 51 individual, organizational, technological and inhabitants enabling elements, in addition to 36 technological and social techniques. The thesis conducted two rounds of a Delphi study targeting 31 policy makers in the Gulf Cooperation Council (GCC). In order to analyze the data using SPSS software, Kendall's Coefficient of Concordance was used to determine the consensus among the policy-makers. The most effective techniques of inhabitants' knowledge acquisition included meetings, interviews, social media, and field visits. While the most effective enabling factors were the willingness of inhabitants to get involved, the information technology infrastructure, the support of the IT staff, and the trust of the inhabitants in the policy-makers. These methods and effective enablers of the inhabitants' knowledge acquisition from the policy- makers' perspectives have provided a better understanding of the inhabitants' knowledge acquisition process in the policy-making organizations. This thesis contributed to theoretical knowledge and studies of the factors associated with the effective techniques of the inhabitants' knowledge acquisition in the context of public policy making in the geographical framework of the GCC Countries. As a result, the public sector will be able to enhance inhabitants' participation, overcome obstacles to this practice and achieve effective government performanc