The purpose of the paper is to assess the impact of corporate governance on Vietnam banks’ performance measured by ROA (return on assets) and OER (operating efficiency ratio). The article uses a research method which is a quantitative research method through the construction of a binary Probit model with two aggregate variables, namely Macroeconomic indicators and financial index variables. The results are consistent with prior research findings, and more importantly, presents statistical justification for pursuing further corporate governance reforms to enhance Vietnam banks’ performance. These findings also lay a foundation for policy makers to make necessary changes to improve corporate governance (i.e role of board of directors, shareholder issues) of Vietnam banks in the future. Social Implications: the study used Vietnam listed banks’ financial data collected covering a period 2008 to 2018. The findings indicated that board size, CEO duality and large shareholder had statistically significant effect on bank performance in both ROA (return on assets) and OER (operating efficiency ratio). While institutional shareholders and foreign shareholders made no impact on Vietnam banks’ performance.