Maria Dolores Díaz is a Spanish voice actor known for her work in dubbing animated series and films for Spanish-language audiences. Her career spans several decades, with her active professional status documented as recently as 2024.

Díaz is recognized for providing the Spanish voice for a range of characters in animated productions. Notably, she voiced the character Odil in the Spanish dub of the animated film Swan Lake, a role often associated with the classic anime film. She also lent her voice to Jo March in the Spanish version of the animated series Little Women. Her work in the anime genre includes the role of Liras in the Spanish dub of the anime special Dracula: Sovereign Of The Damned.

Beyond these specific roles, Díaz's dubbing work is extensive and varied. A significant body of her work includes voicing the character Sailor Uranus and eight other distinct roles in the Spanish dub of the popular anime series Sailor Moon S. She also served as the narrator for the anime series Bannertail: The Story of Gray Squirrel. Her credits extend to other international productions dubbed into Spanish, such as the film The Velveteen Rabbit and the television series Dodger.

In addition to animation, Díaz has voiced characters in numerous live-action films and television series for the Spanish market. Her dubbing credits include performances for actors in productions like Decision to Leave, Rey de Ladrones, and series such as Law & Order: Special Victims Unit and Gilmore Girls.