Fiber Metal Laminates (FMLs) have emerged as a major advancement in the design and performance of modern aircraft structures. By integrating the high strength and stiffness of metals with the lightweight, damage-tolerant properties of fiber-reinforced composites, FMLs achieve a unique combination of mechanical performance, impact resistance, and fatigue durability that cannot be matched by conventional metals or composites alone. This chapter provides an overview of the aerospace applications of various FMLs. The use of FMLs across numerous aircraft components is discussed, including fuselage skins, wing structures, bulkheads, landing gear doors, floor panels, leading edges, and empennage sections. Particular attention is given to widely studied FML types, such as GLARE, ARALL, and CARALL, highlighting their distinct architectures, performance characteristics, and contribution to structural integrity under cyclic and impact loading conditions. In addition, manufacturing techniques specific to FMLs are discussed, with an emphasis on minimizing defects in these structures.