The present study titled “A study on factors influencing online shopping behaviour among college student in Chennai city” aims to examine the factors that influence consumers to prefer online shopping and to analyse their level of satisfaction. With the rapid growth of internet usage and smart phone penetration, online shopping has become an important part of modern consumer lifestyle. The main objectives of the study are to identify the factors attracting consumers towardS online shopping to examine the problems faced by consumers and to measure their satisfaction level. Thestudy is based on primary data collected through a structured questionnaire from selected respondents in Chennai city. Secondary data were collected from books, journals and websites. The data collected were analysed using simple statistical tools such as Percentage Analysis and Weighted Average Method. The findings of the study reveal that convenience, time-saving, attractive discounts, and availability of wide product variety are the major factors influencing consumer preference toward online shopping. However, issues such as payment security concerns, product quality mismatch, and delayed delivery still affect consumer trust. Overall, the study concludes that consumers show a positive attitude towards Online shopping and it has strong growth potential in Chennai city.