Mariana de Iraola is a voice actress and broadcaster based in Argentina. She graduated as a locutora from the Instituto Superior de Enseñanza Radiofónica (ISER) and has worked as a producer and voice actor for the radio program Day Tripper on Rock & Pop, in addition to providing voices for animated series, films, and documentaries.

Within the field of anime and animated adaptation dubbing, Iraola has contributed to several notable projects, primarily working in Latin American Spanish and Argentine dubs. Her known voice roles include Rui Kisugi in the feature film Lupin III vs. Cat's Eye. In live-action adaptations of anime and manga properties, she has voiced Megumi Takani in the film Rurouni Kenshin Part I: Origins. Her work also extends to other series such as Anne Shirley, where she voiced Rachel Lynde, and the film Evangelion: 3.0+1.0: Thrice Upon A Time. Additional television roles include characters in Yo-kai Watch, where she voiced Deslumbrella, Gertrudis, and a woman in episodes twenty three, twenty four, and twenty six, as well as Touko Kanbayashi in episodes nine through eleven of Zom 100: Bucket List of the Dead.