Lebanon has always been an unstable and challenging country. With or without refugees, politics in Lebanon is subject to different internal, regional, and international dynamics that affect the country’s fragile political, security, economic, and social stability. To better understand social instability in Lebanon, this article sheds light on the role of Syrian refugees in diminishing or otherwise of Lebanon’s political, security, and social stability. Taking into consideration the historical role of refugees—especially Syrians—in affecting social stability and the whole political system in an already fragile and almost failed state, the article will also rely on the existing literature on the relationships and interactions between host communities and refugees. This contribution will rely on a qualitative approach to explore the relations and drivers of tensions between Lebanese host communities and the Syrian refugees, highlighting the differences in perceptions and the main sources of strains. In particular, the article will investigate the policies and aid schemes of the international community, mainly United Nations organizations and international nongovernmental organizations, in fostering or otherwise of the tension between the Lebanese host community and the Syrian refugees.