Oliver Grimm was a German actor and voice actor. Born in Munich, Germany, on April 3, 1948, he began his career as a prominent child actor in German cinema during the 1950s before later transitioning into voice work. He died on October 10, 2017, in Passau, Germany.

Grimm is best known in the context of anime voice acting for providing the German voice of the title character Kimba in the classic Japanese animated series Kimba the White Lion (known in German as Kimba, der weiße Löwe). The German-language version of this series premiered in 1977.

Beyond this signature voice role, Grimm built an extensive career as a dubbing actor. His other notable voice credits include providing German dubbing voices for characters such as Pfiffikus in The Smurfs and the Magic Flute, Steve Buscemi in Miller's Crossing, Chris Penn in The True Bosses: A Diabolical Empire, and the crow Fummle Drummle in The Wonderful Adventures of Nils. He also worked as a voice actor for the character Hugo in the German television game show Hugo.

Before his voice acting career, Grimm was a celebrated child star, making his first film appearance in 1952. He achieved great popularity with the 1955 film Wenn der Vater mit dem Sohne, in which he starred opposite Heinz Rühmann. He appeared in nearly twenty family films during his childhood and teenage years. As an adult, he struggled to maintain the same level of success in film and turned to theater and voice acting. He performed on stages in Berlin, Munich, Basel, and Zurich. His later on-screen appearances included a guest role in the television series Derrick in 1975 and a small part in the film Schule in 2000.