齐藤慎二

Shinji Saito (斎藤 慎司, Saitō Shinji, born June 29, 1989) is a Japanese competitor and a performer in yo-yo. He won the World Yo-Yo Contest 8 times in 2A and 4 times in CB. He has the most world titles of any yo-yoer in the history of yo-yo competition.