Olivier Visentin is a Canadian actor from Montreal, Quebec, known primarily for his extensive work in the field of dubbing. Born on November 28, 1974, he began his career in voice dubbing at the age of thirteen, with his first project being the 1987 film The Gate.

As a voice actor, he is most recognized as the regular French voice for actor Jonah Hill in Quebecois dubs of Hollywood films. His dubbing work for Hill includes performances in Superbad, Evan Almighty, Funny People, and The Wolf of Wall Street, among many others. His career also includes providing French voices for other prominent actors such as Jason Biggs, Michael J. Fox, and Danny McBride.

Within the realm of anime, Visentin holds a notable role as the voice of Ryokan Kurita in the French-language Canadian dub of the sports series Eyeshield 21. Kurita is the gentle giant and offensive lineman for the Deimon Devil Bats, a character whose dream is to compete in the Christmas Bowl. This role stands as a primary example of his work in Japanese animation. His other animation voice credits include roles in series such as Johnny Test, as well as the French versions of feature films including Dragons 2, Ratatouille, and Chicken Little. He also contributed voice work to the video game Assassin's Creed IV: Black Flag.