COVID 19 is a newly emerged disease affecting the respiratory system and resembling the SARS disease. It has become a pandemic not less than 3 months from its first case reported in China. The study was carried out with the objectives to assess the knowledge on COVID 19 among adults in urban area of Chennai, Tamil Nadu. The study was conducted using quantitative approach with descriptive study design. 100 Adult men and women between 18 – 59 years of age willing to participate in the study were included using non probability convenient sampling. 65% of the participants were women, 49% were graduate and 46% of the participants were employed. Results of the study showed that about 55% of the participants had adequate knowledge and none of the demographic variables were associated with the levelofknowledgeonCOVID19atp≤0.05