Masafumi Kimura is a Japanese voice actor and narrator born on March 3, 1977, in Aomori Prefecture, Japan. He is affiliated with the talent agency Production Baobab. Kimura began his career in the voice acting industry in the late 1990s.

Kimura is known for his deep and versatile voice, which allows him to portray a wide range of characters, from authoritative and commanding figures to more eccentric and comedic roles. He is also active as a narrator for various television programs, documentaries, and theme park attractions. In addition to his work in Japanese animation, Kimura is frequently cast as the Japanese dubbing voice for numerous overseas actors and films.

Throughout his career, Kimura has built an extensive list of credits in anime, video games, and overseas dubbing. In anime, he is recognized for his roles as Dr. W in Super Dragon Ball Heroes and as Lyones Theo Earthlight in Brighter than the Dawning Blue. He has also voiced Sid Barrett in Soul Eater and Soul Eater Not!, Charlotte Oven in One Piece, and Kitsuchi in Naruto: Shippuden. Other notable anime roles include appearances in long-running series such as Detective Conan, Fairy Tail, and Crayon Shin-chan. His work in video game voice acting includes roles in the Japanese versions of popular titles like League of Legends and the Tales series.

Kimura's career is marked by frequent collaborations with Production Baobab and a consistent presence in major anime franchises. His notable achievements include a substantial body of work in foreign film and drama dubbing, where he provides the official Japanese voice for actors such as Dean Norris, Vinnie Jones, and Forest Whitaker. His deep vocal range has made him a sought-after talent for bringing a sense of authority, warmth, or intensity to his characters across various media.