Ariadna Jiménez is a Spanish voice actress known for her extensive work in anime dubbing, particularly during the prolific era of voiceover production in Barcelona in the 2000s. She began her career in the anime industry in the 1990s and established a reputation for her versatile performances, often playing cheeky children and energetic girls.

Her body of work includes a wide array of notable anime roles. She is recognized for voicing Homura Akemi in Puella Magi Madoka Magica, a role listed among her credits along with Tatsuya Kaname from the same series. In Hunter X Hunter, she provided the voices for both Machi and Senritsu. Her other prominent roles include Tomothy Laisenbach in King of Thorn, Teo in Oblivion Island: Haruka and the Magic Mirror, Shiro Kabuto in Mazinger Edition Z: The Impact! and MazinKaiser, and Lori in MazinKaiser. She also voiced the characters Baba Lamune and Lamunedo Baba across the Knights of Ramune & 40 franchise. Her film work includes a role in Wolf Children.

Beyond the extensive list provided, Jiménez's career is marked by several other significant performances. She is the voice of Excel in the cult classic Excel♡Saga, Sakura Suzuhara in the Rebuild of Evangelion films, and various characters in YuYu Hakusho, including Koenma and Mukuro. In the Blood franchise, she voiced Saya in Blood: The Last Vampire, Irene in Blood+, and Yuka Amino in Blood-C. Her repertoire also includes roles in Berserk: The Golden Age Arc as Rickert, The Girl Who Leapt Through Time as Moriko Uesugi, and Serial Experiments Lain as Alice Mizuki. While her primary focus is anime, she is also widely recognized as the iconic Spanish voice of Finn the Human in the Western animated series Adventure Time.