The chapter “Smart Nanomaterials for Injury Prevention and Recovery” explores how nanotechnology is used in sports medicine to protect athletes from harm and hasten their recovery. Smart nanomaterials, which are designed at the nanoscale to react actively to physiological changesChange, present encouraging options for enhancing resilience and athletic performanceAthletic performance. Through wearable sensors that track biomechanical loads in real time and notify athletes and trainers of potential hazards before accidents happen, these materials can prevent injury. Furthermore, by maximising the delivery of therapeutic agents precisely where and when needed, smart nanomaterials—such as tailoredDrug delivery systems (liposomal, polymeric) drug delivery systemsDelivery systems (nano-based) and nutrients contained in nanoparticles—can quicken the healingHealing process. Use of nanomaterials is a groundbreaking approach for sports rehabilitation because of its accuracy, which speeds up recovery and lowers the possibility of negative effects. Additionally, protective sports gearGear made of nanofibersNanofibers in recovery and nanocompositesNanocomposites offers an enhanced layer of protection due to their better impactImpact resistance. This chapter demonstrates how smart nanomaterials are changing injury prevention and recovery tactics, opening the door to safer, quicker, and more efficient athletic care through a thorough examination of applications, advantages, and the most recent advancements in nanotechnology for sports.