Silvia Aira is an Argentine actress and dubbing director with a career spanning over two decades, recognized for her extensive work in anime, animated series, and live-action film and television dubbing. She is also a commercial voice-over artist and a professor in the dubbing department at ISER, the Instituto Superior de Enseñanza Radiofónica in Argentina. Aira is the author of the book Doblaje: sugerencias para el aprendizaje del oficio, which focuses on the craft of dubbing.

In the realm of anime, Aira is known for voicing the character Gin in the Argentine Spanish dubs of the Yo-kai Watch television series and its film adaptation, Yo-kai Watch: The Movie. Her other significant anime roles include Junko Ariyoshi in Arjuna, Miho Iwakura in Serial Experiments Lain, Julia Seido in Geneshaft, and Noriko in the Studio Ghibli film Ponyo on the Cliff by the Sea. She also lent her voice to the film The Cat Returns, portraying the characters Naoko Yoshioka and Chika.

Beyond anime, Aira's voice is featured in numerous animated series. She voiced Queen Butterfly in Star vs. the Forces of Evil, Felicia Rocio in Amphibia, Gwendolyn Clawthorne in The Owl House, and Dr. Helen Spitz in Dientes de lata. Her work also includes roles in video games, such as Johanna and Sonya in Heroes of the Storm.

In addition to her on-screen roles, Aira has an extensive career as a dubbing director. Her directing credits include the Argentine Spanish dubs for films such as J. Edgar and the television film Ángel de la Navidad. Throughout her career, she has frequently voiced characters who are mothers or women in authority, a pattern noted in her filmography with roles like the mothers in Arjuna, Serial Experiments Lain, and Phil del Futuro, as well as Udonna in Power Rangers Fuerza Mística. Aira has also been the Spanish voice for numerous acclaimed actresses in live-action productions, including Meryl Streep, Glenn Close, and Helen Mirren.