Helmets are a crucial safety measure for motorcycle riders, providing protection against head injuries and potentially saving lives. To ensure the highest level of protection, it is essential for riders to choose helmets that meet safety standards and ergonomic design, which ensure comfort, fit, and usability. This comprehensive review on helmet ergonomics that explores various aspects of helmet design, including research on impact absorption characteristics of helmet shell materials and innovative manufacturing methods. Additionally, it examines the impact of helmet shape, size, weight, and ventilation systems on wearability and user comfort. The discussion explores advancements in head modeling, impact simulations, and the utilization of anthropometric data and human factors engineering concepts in helmet design. Crucial elements such as the design and adjustability of the chin strap or retention system are considered to ensure a secure fit during crashes. The importance of a wide and unobstructed field of vision is highlighted for maintaining situational awareness on the road. The role of helmet padding and cushioning materials is emphasized, distributing forces evenly across the head for both comfort and impact absorption. Weight reduction efforts focus on developing lightweight yet robust materials to minimize strain and fatigue on the neck. Ventilation systems are examined to facilitate airflow and heat dissipation, preventing discomfort during rides. The incorporation of sensors and augmented reality interfaces in helmet design has the potential to revolutionize rider safety and experience, making two-wheelers a safer and more connected mode of transport. By considering these factors in the ergonomic design of motorcycle helmets, engineers and researchers can create helmets that prioritize safety, user acceptance, and optimal protection with enhanced comfort and usability. This review article underscores the significance of ergonomic design in enhancing helmet efficacy and user acceptance holds considerable value for the field of helmet safety and research.