Utilization of nanotechnology and nanomaterials has drawn attention across various study disciplines due to their attractive characteristics. The processes of promoting industry and urbanization have led to various problems, including heightened energy requirements, a surplus of waste production, and adverse environmental repercussions. Consequently, there have been rampant misuse and overutilization of fuels and scarce assets, leading to the exhaustion of reserve fuel. The widespread use of fossil fuel energy has resulted in significant environmental risks, mostly attributable to the release of gases that contribute to global warming, which in turn has resulted in respiratory problems and other related health dangers. To diminish the negative impacts of fossil fuels, researchers are primarily interested in developing and using renewable fuels derived from biological sources such as bioethanol, biodiesel, and biohydrogen. This chapter explores the process of creating different categories and uses of nanomaterials and nanocomposites, with a focus on their function in catalyzing the production of biofuels. The synthesis part offers a thorough examination of many methodologies, encompassing both bottom-up and top-down approaches. It delves into chemical, physical, and biological procedures, such as sol-gel processes, hydrothermal synthesis processes, and microbial methods. The chapter emphasizes the significant role that nanomaterials play in increasing the efficiency of biofuel synthesis in the application sector and analyzes the particular utilization of advanced materials in the production of biodiesel, bioethanol, and biogas. Additionally, the future holds potential opportunities.