This paper examines the relationship between corporate social responsibility and financial performance of listed companies in Nigeria. The study used correlational research designs within positive accounting theory. The study utilized secondary data collected from the annual report and accounts of twenty-three (23) sampled listed companies for a period of 10 years (2012-2021). The sample of the companies was arrived at using census sampling technique in which all the elements of the population were used for the study. The data were analyzed using regression analysis (GLS Fixed Effect) with the aid of Stata Version 14.0. The study concludes that the involvement in CSR is also one way of meeting the requirement for good citizenship where a company is expected to be socially responsible to the environment in which it operates. The study therefore recommends, among others, that regulatory authorities such as SEC and NSE should improve on their monitoring and supervisory functions to make listed companies in Nigeria to comply strictly with the code of CSR.