||The dissertation thesis investigates the relationship between corporate social responsibility (CSR) and financial performance (FP) on the sample of 51 Eurozone banks over the period from 2008 to 2014. The investigation is based on a panel data regression analysing the financial data from Bankscope and the social performance data from CSRHub. Return on assets and the ratio of non-performing loans to total loans represent the measures of financial performance and are used as dependent variables. The results of this model have shown a positive and statistically significant CSR-FP relationship. It is argued that even though the results show statistical significance, they do not necessarily include such a strong informational value. This is caused by methodological limitations, such as potentially biased data on CSR, as well as by the theoretical ones. The main theoretical concern, detected in the dissertation thesis, is a need for redefinition of the banks' driving motives of engaging in CSR activities. Banks engaging in CSR activities for merely strategic reasons should be analysed separately on a firm-level as they may otherwise bias the empirical results. Another important aspect of the work was an argument that banks benefit from CSR mainly through the product differentiation. This could not have been tested empirically, but it is assumed that the product differentiation, for example through reputation enhancement, may play a significant role in boosting bank's profits.