María José Blasco is a Spanish voice actor specializing in dubbing foreign productions into Spanish. She is professionally active and primarily lends her voice to adolescent characters.

Blasco is known for her work in anime dubbing, having voiced prominent roles in several popular series. She provides the Spanish voice for Saiko Yonebayashi in both the first and second seasons of Tokyo Ghoul:re. In the DanMachi franchise, she voices the Amazon warrior Tiona Hiryute in the anime Sword Oratoria: Is It Wrong to Try to Pick Up Girls in a Dungeon? On the Side, as well as in the first season of the main series, Is It Wrong to Try to Pick Up Girls in a Dungeon?. Her other anime dubbing credits include roles in the second season of Assassination Classroom, where she voiced Yukiko Kanzaki and Yuzuki Fuwa, and the role of Misha Flott in the first season of Is It Wrong to Try to Pick Up Girls in a Dungeon?.

In addition to anime, her work encompasses dubbing for live-action films and series. Notable credits include providing the Spanish voice for Rosa de Vargas in both the first and second seasons of the historical drama The Spanish Princess. She has also dubbed roles in numerous other productions, such as the character Meike in the ¡Que te den, profe! film series, Anna in La pequeña traviesa, and various characters in the film El viaje de Fanny. Her filmography also includes dubbing for the series Mentes brillantes and the film Cute Little Buggers.