|Birth date||May 16, 1951|
|Birth place||Katsuyama, Fukui, Japan|
Unshō Ishizuka (石塚 運昇 Ishizuka Unshō?, born May 16, 1951), birth name Yukinori Ishizuka (石塚 運昇 Ishizuka Yukinori?), is a veteran seiyū who voices Lehm in both the anime and drama CD, making him the only seiyū to portray his character in both mediums.
Ishizuka's anime career began in 1984 and he is known for voicing Professor Oak in Pokémon. His voice has also appeared in various video games and in the dubbing of overseas TV shows and movies for the Japanese market. He is affiliated with Aoni Production.