Hideri Noguchi (野口 ヒデリ Noguchi Hideri ) is a minor character in the Hibike! Euphonium series. He is a third-year student at Kitauji High School who is the trombone section leader in the Kitauji Concert Band Club. It is hinted that Mei Taura might be his girlfriend.
Hideri has short, somewhat spiked, brown hair and red-brownish eyes. He is usually seen with a standard Kitauji High School uniform for boys.
Hideri seems to be a lively young man with a great sense of humor, and a laid-back personality. However, he is a bit shy and can get nervous easily.