Disasters continue to present immense challenges to communities across the world, resulting in deaths, relocation, and severe socioeconomic upheavals. India has been historically prone to natural calamities such as flooding, droughts, cyclones, earthquakes, and landslides due to its distinctive geo-climatic characteristics. Karnataka, a state in southern India, is vulnerable to a variety of hazards that pose substantial threats to its populace, structures, and ecosystem. The amount of rain that the state received between August 3 and August 10, 2019, was the highest for 118 years, and contributed to severe floods in the various parts of the state. In the recent past, Karnataka has experienced devastating floods in 2005, 2009, and 2018. These events have had profound impacts on people and communities, as well as negative social, economic, and ecological consequences. During the 2018–19 floods, almost 7 lakh people were displaced, 2.47 lakh houses were damaged, 91 people were killed, and 103 taluks (administrative units) were impacted across 22 districts. Kodagu, the Malnad region’s surrounding districts (Chikkamagaluru, Hassan, Shivamogga), as well as the state’s coastal districts (Dakshina Kannada, Udupi, and Uttara Kannada), suffered terrible flash floods which were accompanied by mudflows and landslides that caused significant destruction of property and many fatalities. Loss of livelihood, displacement, trauma, and disturbed social networks all emerged as major stressors for survivors, contributing to increased emotional and psychological distress. During the relief phase, from August 10 to 18, 2019, a rapid psychosocial need assessment was conducted in the state districts of Shivamogga, Hassan, Dakshina Kannada, Uttara Kannada, Belagavi, Dharwad, Gadag, and Bagalkot to figure out and tackle these problems among the flood survivors. Key psychosocial issues and vulnerabilities were identified through a blend of qualitative and quantitative methodologies, such as focus groups, interviews, and surveys. The assessment revealed the various psychosocial issues mentioned above and that there was a need to train government workers, NGO staff, and community members on psychosocial support, including Psychosocial First Aid (PSFA), to ensure that they can provide it to survivors and be better prepared to face such crises in the future.