This review focuses on the use of lignocellulo- -se biomass as a non-conventional source for bioethanol and gasohol production. This is because the increasing demand for traditional energy sources has become increasingly apparent in today's energy landscape, marked by a variety of competing energy sources. Within this complex energy environment, gasohol—a mixture of gasoline and bioethanol in varying ratios—has emerged as a viable alternative to the conventional fossil fuels that have long dominated the energy market. The increasing use of edible crops for bioethanol production has inadvertently created competition with the global food supply chain, resulting in rising food prices and shortages. In recent years, bioethanol from agricultural residues like husks, hulls, cobs, straws, and bagasse has been encouraged. These materials, classified as second-generation (2G) biomass resources, show great promise for the biofuel sector. Their lignocellulosic content makes them valuable bio-resources that can serve as a sustainable source for bioethanol production. However, the technical processes involved in converting these lignocellulosic materials into bioethanol have presented several challenges that hinder their commercial viability. These involve the quality of raw materials available for processing, limitations related to bioethanol yield, and the high costs associated with the production processes required for bioethanol production. Consequently, this review focuses on the bioethanol derived from locally sourced, underutilised agricultural residues, while examining the strategies involved in solving the technical issues. This represents a promising avenue for advancing renewable energy sources and reducing reliance on fossil fuels, which have faced increasing criticism for their environmental impact.