Julien Rampon is a French voice actor known for his work in the dubbing of anime series and other animated content for French-language audiences.

His career is primarily documented through his roles in the French adaptations of several popular anime. He is recognized for voicing Mobu across multiple seasons of the series Kingdom. In the Kakegurui franchise, he provides the voice for the character Ibara Obami in the second season and also takes on roles such as Jun Kiwatari and Shinnouji. Rampon has multiple roles in the Is It Wrong to Try to Pick Up Girls in a Dungeon? series, voicing both Kashima Ouka and the deity Takemikazuchi. For the Glitter Force Doki Doki adaptation, he voices the character Lance.

Beyond these, his voice acting portfolio includes characters in several other noted anime. He is part of the French cast for Haikyu!!, lending his voice to multiple characters including Tetsuro Kuroo, Makoto Shimada, Kaname Moniwa, and Kazuhito Narita. He also appears in the Death Parade adaptation as Shigeru Miura and has roles in the Sword Art Online franchise, voicing Diego in the original series and both Jake and Lax in Sword Art Online Alternative: Gun Gale Online. His work extends to children's audio content, such as the audiobook for Avni - Animal Vraiment Non Identifié, where he voices several characters including the father of Avni, Léon, Mr. Blobfish, and Biff.