Olivia Masseron is a French voice actress who works primarily in dubbing for animation and live-action television series. Her career in animation voicing includes contributions to several notable anime productions for the French market, particularly in dubbing roles for Netflix releases.

Masseron is known for providing the French voice of Tomomi Endô in the anime series Kimi ni Todoke: From Me to You. She voices this character across multiple installments of the franchise, including the original series, its second season, and the third season released on Netflix. In addition to her work on Kimi ni Todoke, she also took on the role of Tota Kazehaya, a young boy character in the same series. Another significant anime voice role for Masseron is Shelly Barnett in the series The Eminence in Shadow. Her credits further include the role of Sora in the anime series The Weakest Tamer Began a Journey to Pick Up Trash, as well as the role of a child version of the character Rumi in the series KPop Demon Hunters.

Beyond anime, Masseron's voice acting work extends to dubbing characters in various international live-action series. Her credits in this area include roles in shows such as Subteran, Alert, La Brea, Miss Austen, Deliver Me, Pêche interdite, Détective Forst, Good Doctor, and Le Coup gagnant.