Hitoshi Usui (臼井 ひとし Usui Hitoshi) is a minor character in the Hibike! Euphonium series. He is a third year student who plays the bass clarinet, and serves as the principal bass clarinetist.
Hitoshi is a young man with short, spiked maroon-colored hair and light brown eyes. He also wears round silver-framed glasses.
Not much is known about Hitoshi, being a minor character, other than being portrayed to be really friendly and happy.