Junichi Masuda is a Japanese video game composer, director, designer, producer, singer, programmer and trombonist, best known for his work in the Pokémon franchise. He was a member of Game Freak where he was an employee and executive at the company since 1989 when he founded it alongside Satoshi Tajiri and Ken Sugimori. In 2022, Masuda was appointed to be Chief Creative Fellow at The Pokémon Company.

Pokémon is a Japanese media franchise consisting of video games, animated series and films, a trading card game, and other related media. The franchise takes place in a shared universe in which humans co-exist with creatures known as Pokémon, a large variety of species endowed with special powers. The franchise's target audience is children aged 5 to 12, but it is known to attract people of all ages.