Lebanon hosts the highest number of displaced persons per capita worldwide, with 1.5 million Syrians, 27,700 Palestinians from Syria, and 180,000 Palestinian refugees from Lebanon. It is estimated that about 3.3 million people need assistance in the country, including 1.5 million vulnerable Lebanese and refugees. Since October 2019, Lebanon has experienced a severe economic and financial crisis that led to the loss of around 220,000 jobs, increasing the inflation rate to 11.4%. The shutdown due to COVID-19 has had a substantial impact on local markets. Marjayoun and Hasbaya in the South of the country are amongst the most vulnerable regions of Lebanon. The area hosts more than 114 Informal Tented Settlements (ITSs) with approximately 6,717 people. People’s vulnerability in the areas has increased dramatically since restrictions on mobility were applied due to COVID-19. On average, each ITS has 155 units. 90% of beneficiaries live in a crowded space, representing a significant risk factor in a pandemic outbreak and requires urgent rehabilitation support.