This working paper reviews the literature on infrastructural vulnerabilities in the Lebanese context of mass displacement to answer the following questions: • What are the particular infrastructural vulnerabilities at stake in contemporary Lebanon? • Where are the intersections of vulnerabilities caused by displacement and those related to public services, for both migrants and hosts? • How is vulnerability conceptualised in the literature, and what role are public services and migration seen to play in it? 'Vulnerability' has been a key term in contemporary Lebanon, both in the realm of public services and in the context of mass displacement. Yet often its precise meaning, especially the links between its spatial and social dimensions, are left underexplored (Issa et al., 2014; Stel & van der Molen, 2015). This review seeks to bridge the gap between these dimensions. Such an examination appears particularly pressing today because political, humanitarian, and academic discourses often presume causal connections between the presence of refugees and other precarious migrant communities, and the frail state of the country's public services, often without further investigation. As Lebanon the state of public services and the situation of the large number of non-citizens in the country have both become exacerbated. It is therefore vital to examine how the concept of vulnerability connects and interacts with migrants' and hosts' social and spatial experiences of stretched or absent public services. Conceptually, vulnerability has been viewed as linked to infrastructure in the literature on cities in particular. Because of their ability to connect and disconnect residents from the city, infrastructures function as sites of contestation and negotiation over what is public or private and who is included or excluded (Graham & Marvin, 2001; Rodgers & O'Neill, 2012). Infrastructures can thus create vulnerabilities on several levels: the absence of infrastructure-based public services can create health problems, as well as advancing social stigma, both of which can act as an additional threat Under the broad concept of infrastructure, we considered both physical and social systems and networks through which people sustain their lives. The term is thus taken to encompass shelter, land, water, waste management, electricity, and roads, but also access to the social networks and modes of sociality that enable and sustain these. However, health and education services are beyond the scope of this review, as our interest lies in the links between the materiality of the built environment on the one hand and the social effects on the other. displaced, labour migrants from Southeast Asia, Africa and Syria, as well as older and more recent waves of forcibly displaced groups including Armenians, Kurds, Palestinians, Iraqis, and of course Syrians. We do this to attend to the common themes and conditions that frame infrastructure-related vulnerabilities for the Lebanese context of mass displacement, which encompasses the conditions and con...