Sonia Ferreira was a Brazilian voice actress, born Cidália Vitornio in Rio de Janeiro in 1941. Her career in dubbing spanned from the 1970s until her passing on December 30, 2003.

She is recognized for her extensive work dubbing numerous characters in animation and live-action films and series into Portuguese. Ferreira was the voice of Claudia La Salle in the Brazilian version of the anime series The Super Dimension Fortress Macross. Her other notable anime and animation roles included Ket's grandmother in the first dubbing of Kiki's Delivery Service, Madame Elroy Adler in Candy Candy, and Ungra in Shinzo. She also provided voices for various characters in American animated series, such as in Thundercats, Silverhawks, and Galaxy High School.

In addition to her work in animation, Ferreira was prolific in dubbing live-action productions. She was frequently the Portuguese voice for actresses such as Bette Midler, Audrey Hepburn, and Barbra Streisand in many of their films. This included voicing Midler's character Winifred Sanderson in the second dubbing of Hocus Pocus and Streisand's roles in Yentl and Hello, Dolly!.