Xanat Martinez is a Mexican voice actress known for her work in anime and live-action dubbing for the Latin American Spanish market. She studied dubbing at Art Studio to begin her career in voice acting.

In the field of anime, Martinez is recognized for her role as Emily Brown in the 2023 series My Unique Skill Makes Me OP Even at Level 1. This simuldub was produced by Crunchyroll and recorded at VSI Mexico under the direction of Pascual Meza, with Martinez voicing the young adventurer who befriends the protagonist Ryota Sato. Also in 2023, she provided voices for the anime series Ooku: The Inner Chambers, playing Princess Chiyo, Ietsuna Tokugawa, and O-Ei, as well as taking on the role of Hans Haas in Pluto. Her additional anime work includes providing additional voices for the second season of The Ancient Magus Bride.

Beyond anime, Martinez has voiced characters for animated series such as Yoshi in the second and eleventh seasons of Robot Chicken. She has also contributed additional voices to shows including The Heroic Adventures of the Valiant Prince Ivandoe, The Casagrandes, and Victor and Valentino.

Her voice acting work extends to live-action dubbing for films and television. She voiced Fen in the 2023 film Miss Shampoo, Maki in the 2023 live-action adaptation of Zom 100: Bucket List of the Dead, and provided additional voices for the film Freestyle in 2023. For television, she played Pauline in Cuanto pesa la sangre and Shizuka Yamauchi and Anzu Murata in Cenizas del pasado, among other roles.