The aim of this study is to examine how the characteristics of boards affect the financial performance of banks that are listed on the Palatine Exchanges. The study uses a quantitative approach to test hypotheses, gathering data on various variables from secondary sources, primarily the annual reports of banks over a ten-year period from 2010 to 2019. Both descriptive and inferential statistical analysis methods are applied to analyze the secondary data. Additionally, panel data regression is utilized to explore how board diversity factors such as gender, age, nationality, education, and experience affect the financial performance of banks, as measured by ROE and ROA. The results indicate that board age diversity has a positive impact on the ROE of banks in Palestine.