Lignocellulose, a complex structure found in plant cell walls, holds immense potential for biofuel production. Comprising cellulose, hemicellulose, and lignin, lignocellulose can be enzymatically or chemically broken down into sugars for fermentation into biofuels such as ethanol. Unlike first-generation biofuels that compete with food crops, lignocellulosic feedstocks like agricultural residues, wood chips, and dedicated energy crops offer a sustainable alternative. However, unlocking lignocellulose's full potential for biofuel production requires overcoming challenges such as efficient biomass pretreatment, enzymatic hydrolysis, and fermentation processes. Advances in biotechnology and process engineering aim to optimize these processes, making lignocellulosic biofuels a promising avenue for reducing greenhouse gas emissions and enhancing energy security.