Estefanía Piedra is a Mexican voice actor known for her extensive work in Latin American Spanish dubs of anime series and films. Her career, which began in the late 2010s, has established her as a prominent and versatile voice in the industry, with a particular concentration of leading roles in the early 2020s. She is sometimes credited under the alternative names Fanny Piedra or Stephanie Piedra.

While she has provided voices for a wide array of characters, Piedra is particularly recognized for her performances in several high-profile anime. One of her significant early roles was as Miki Makimura in the 2018 Netflix anime Devilman: Crybaby. The same year, she began voicing Ena Saitou in the beloved slice-of-life series Laid-Back Camp, a role she has reprised across multiple seasons and specials, including the third season in 2024. Her other notable anime voice credits include Felicia Mitsuki in the Magia Record: Puella Magi Madoka Magica Side Story series, Sachi Umino in A Couple of Cuckoos, Guinevere in The Seven Deadly Sins: Four Knights of the Apocalypse, and Lishu in The Apothecary Diaries. Piedra has also voiced Alice Rondo across multiple seasons and specials of That Time I Got Reincarnated as a Slime, starting in 2018. Her role as the protagonist Nina in Nina the Starry Bride is another example of her leading work in the fantasy genre.

Beyond anime, Piedra's voice acting portfolio extends to other major animation and live-action dubbing projects. She voiced the lead character, Meilin "Mei" Lee, in the Latin American Spanish dub of the Pixar film Turning Red. Her work in live-action dubbing includes voicing the character Seong Ga-yeong in the internationally acclaimed Netflix series Squid Game.

While specific recurring director or studio collaborations are not always detailed in standard credits, her repeated roles in long-running franchises like Laid-Back Camp, The Apothecary Diaries, and That Time I Got Reincarnated as a Slime demonstrate consistent relationships with the dubbing studios responsible for these series. A notable personal note, which surfaced in the credits for Turning Red, is that she is cousins with fellow voice actor José Luis Piedra, who also worked on the same film. Estefanía Piedra was born on December 1, 2007, and her career trajectory shows a remarkable rise with a significant number of main and supporting roles in anime productions from a young age.