This review provides an overview of the current landscape of Mobile Financial Services (MFS) in Bangladesh, focusing on its evolution, adoption, and socio-economic impact. MFS in Bangladesh has grown significantly since its inception in 2011, driven by widespread mobile phone usage, a burgeoning population, and the need for accessible financial services in a country with a significant unbanked population. Mobile banking has democratized financial services, bringing millions of unbanked citizens into the formal financial system, particularly in rural and remote areas. The review highlights the major players in the MFS sector, such as bKash, Rocket, and Nagad, which dominate the market with innovative services that cater to various financial needs, including money transfers, bill payments, and merchant payments. These services have significantly reduced the barriers to financial inclusion, providing a secure, convenient, and cost-effective alternative to traditional banking. The sector's growth has been bolstered by supportive regulatory frameworks from the Bangladesh Bank, encouraging innovation while ensuring consumer protection.