Montserrat Mendoza is a Mexican voice actress and dubbing director with a career spanning over two decades. She is certified in acting technique for film by Escuela EL SET and is an actress certified by the Actors Studio in New York. Mendoza comes from a family of voice actors; she is the daughter of Ricardo Mendoza and the late Luis Alfonso Mendoza was her uncle.

Mendoza has provided the Spanish voice for a wide array of characters in anime. She is known for voicing the protagonist Rimuru Tempest in the series That Time I Got Reincarnated as a Slime, including the film Scarlet Bond. She voiced Runo Misaki in Bakugan Battle Brawlers and its sequel Bakugan Battle Brawlers: New Vestroia. Her other prominent anime roles include S.A.M. in Cannon Busters, Michiru Kagemori in BNA: Brand New Animal, Yachiru Kusajishi in Bleach, Chloe Park in We Bare Bears, and Maki Gamō in Don't Toy With Me, Miss Nagatoro. She has also voiced characters in franchises such as Pokémon, Dragon Ball Super, Naruto, and JoJo's Bizarre Adventure.

Beyond anime, her voice work is extensive in animated series and films. She is the Spanish voice of Panini in Chowder, Margo in the Despicable Me franchise, Suzy Johnson in Phineas and Ferb, and Lynn Loud Jr. in The Loud House. In video games, she has lent her voice to Akali in League of Legends and Riju in The Legend of Zelda: Breath of the Wild. She also serves as the recurring dubbing voice for actresses Chloë Grace Moretz and Olivia Holt.

Throughout her career, Mendoza has frequently collaborated with a network of fellow voice actors. According to collaboration data, her most frequent professional partner is Karla Falcón, with whom she has worked on seven titles. Other frequent collaborators include Enzo Fortuny, Maria Blanco, and José Antonio Macías.

In addition to her performance work, Mendoza has established herself as a director. She currently directs dubbing at several studios in Mexico, including Producciones Grande, Cuarto de Máquinas, NewArt, CineDubb, IYUNO, and DNA.