A field survey was conducted to document the Indigenous Technical Knowledge (ITK) of fisherfolk of Karnataka. Profile analysis of the respondents showed that majority were of old age (above 45 years), had primary level of education, were married and had a minimum fishing experience of 20 years. Majority had a family size of more than 4 members and nuclear families and dwelled in pucca houses. The Indigenous Technical Knowledge of the fisherfolk of fishing villages, Bengre, Dumavathi, Ullal and Kulai belonging to Dakshina Kannada district were collected and the scientific rationale for the same was studied.