Financial system and economic growth/development is a critical and multifaceted topic that holds significant importance in the context of a country's economic landscape. Over the 21st century, the relationship between economic growth/development and financial system has been the subject of increasing attention. The objective of this study is to assessing the role of Financial Institutions i.e., Islami bank and Conventional bank with real GDP growth and also to analyzing Financial Inclusion. We used the time series data of banks from the period 2018 to 2022.We also used secondary data for this paper. Our analysis found that Islami Banks shows higher contribution over the economic development then the Conventional Banks in Bangladesh. But there are more to go. Our recommendation is that making financial system more accessible through adopting new technologies can accelerate economic growth/development in Bangladesh
