This review discusses various methods for manufacturing metallic foams, highlighting their unique properties and applications. Metallic foams are lightweight, strong, and have a porous structure that allows them to be used in a wide range of industries, including aerospace, automotive, and biomedical. The review covers several fabrication techniques, such as liquid metallurgy, powder metallurgy, metal vapor, and metal ion solutions. Each method has its own advantages and challenges, with the liquid metallurgy route being the easiest and most cost-effective, while the powder metallurgy method is more complex and expensive. The review also discusses the importance of selecting the appropriate method based on the specific requirements of the application, such as weight reduction, energy absorption, and thermal management. Additive manufacturing is highlighted as an emerging field that allows for the production of complex 3D shapes and customized material characteristics. The review concludes that ongoing research and development are essential to improve the efficiency and cost-effectiveness of metallic foam manufacturing, enabling its wider application across various industries.This review discusses various methods for manufacturing metallic foams, highlighting their unique properties and applications. Metallic foams are lightweight, strong, and have a porous structure that allows them to be used in a wide range of industries, including aerospace, automotive, and biomedical. The review covers several fabrication techniques, such as liquid metallurgy, powder metallurgy, metal vapor, and metal ion solutions. Each method has its own advantages and challenges, with the liquid metallurgy route being the easiest and most cost-effective, while the powder metallurgy method is more complex and expensive. The review also discusses the importance of selecting the appropriate method based on the specific requirements of the application, such as weight reduction, energy absorption, and thermal management. Additive manufacturing is highlighted as an emerging field that allows for the production of complex 3D shapes and customized material characteristics. The review concludes that ongoing research and development are essential to improve the efficiency and cost-effectiveness of metallic foam manufacturing, enabling its wider application across various industries.