The rationale behind this study is to explore performance of Citibank, N.A. Bangladesh which is reflected on its financial statements and to provide some comments to improve its banking business. This study is carried out by observing several financial ratios, analyzing trends of various elements of Citibank's past four years performance results. I have used correlation and regression tools by applying SPSS software package to determine the degree of relationship between variables with their significance. A hypothesis is formulated to test whether there is a positive correlation among the financial performance measured by return on assets & interest income, and the independent variables. Financial performance analysis is the most imperative section which covers the focal findings of the study. Financial highlights, common size financial statements, key financial ratios, regression and trend analysis tools are applied to assess the financial performance of the bank. Formulated hypothesis is tested in the last part of this section using correlation matrix. Final section shows SWOT analysis of the selected bank suggests some areas of perfection and draws a conclusion.