Background: Musculoskeletal problems are observed to be higher in the low-income group of people who are engaged in physically demanding jobs. Objectives: The purpose of this study was to find the prevalence of Low Back Pain and associated factors for low back pain in coastal fisherwomen. Methods: Cross-sectional study was conducted among 336 fisherwomen aged 18 to 49 years from 7 out of 16 fishing villages in Trivandrum Corporation which were randomly drawn. Prevalence of Chronic Low Back Pain was estimated using Nordic Body Map and screening questions which rule out pain occurrence in the past 3 months, past 6 months, and past one year. Pearson Chi-Square test and binary logistic regression were performed to understand the association between chronic low back pain and pain severity with associated factors. Results: The prevalence of low back pain in coastal fisherwomen was determined to be 45%. Higher BMI, histories of UTI, stress induced headaches , fall , physical abuses , higher frequency of drinking water collection, more years of fishing related work, not standing for long while working were found to be associated with chronic low back pain. Lesser income, not standing while working, improper seating while work, not designating stipulated time during work were found to be associated with pain severity in bivariate analysis. In binary logistic regression, all the factors except lesser monthly income and stipulated time for rest became predictors for pain severity. Conclusions: Our study demonstrated that Low back pain is a common problem among fisherwomen. Correcting the working environment and posture gains importance.