Naoto Sago (ä½ÂÃ¥ÂÂå°Â人, Sagà  Naoto, is a Japanese karateka. He won the silver medal in the men's kumite âÂÂ60 kg event at the 2018 World Karate Championships held in Madrid, Spain. He represented Japan at the 2020 Summer Olympics in karate. He competed in the men's 67 kg event where he did not advance to compete in the semifinals.