Nanomaterials are used in various applications such as Automotive, Aerospace, Marine, Defense, Electronic and Communication Engineering. This special issue covers the research works on nanomaterials including nanocomposites viz., metal matrix composites, polymer matrix composites, ceramic matrix composites, green and bio composites, hybrid composites. In addition, machinability studies on nanomaterials, joining of nanomaterials using advanced welding techniques, surface modifications of nanomaterials, additive manufacturing of nanomaterials can be published. This special issue will attract the researchers and academicians to publish the quality research wok on nanomaterials. It will be helpful to the practicing industrialist to know the latest developments on nanomaterials, manufacturing methods and characterization techniques.