Prof. Masahito Hitosugi (一杉正仁), born July 3, 1969, is a Japanese forensic pathologist, researcher, and educator, and a leading authority in legal medicine and traffic-accident preventive medicine in Japan. He serves as Professor of Legal Medicine at Shiga University of Medical Science. He graduated from the Jikei University School of Medicine in 1994 and subsequently worked at Kawasaki City Kawasaki Hospital before holding positions as an assistant at Doshisha University and associate professor in the Department of Forensic Medicine at Dokkyo Medical University. Beyond his academic post, he serves as a part-time police doctor at the Tochigi Prefectural Police Headquarters and is active across numerous academic societies and government-affiliated committees. His research centres on the pathophysiology of sudden death, thrombosis, and preventive medicine for traffic accidents, an area in which he is widely recognised both domestically and internationally. His contributions have been honored with numerous distinctions, including the Technological Contribution Award from the Society of Automotive Engineers of Japan (2017), the International Health Professional of the Year award (Cambridge, England, 2016), the Kenichi Uemura Award from the Japan Society for Medical English Education, and multiple Best Paper and Best Presentation awards from the Japan Society of Automotive Engineers and the Japan Council of Traffic Science.