Magda Medeiros is a retired Brazilian actress and voice actress known for her work in dubbing, particularly during the 1960s and 1970s. She began her career as a young actress, influenced by her father, actor and voice actor Magno Marino. Medeiros adopted her stage name but was also known professionally as Magda Marino.

Her work in dubbing included a significant tenure at the AIC studio in São Paulo, beginning around 1962. She was active as a voice actress in São Paulo until approximately 1968, when she and her father moved to Rio de Janeiro. In Rio, she worked at studios such as TV Cinesom and Herbert Richers before dedicating herself primarily to theater, especially children's theatre, by the early 1970s.

Among her roles in Western animation, Medeiros provided voices for characters in series such as Space Ghost, where she was the first and most consistent voice for the character Jane, as well as The Jetsons, Manda-Chuva, and Woody Woodpecker. Her most recognized role within the context of anime is Léia, also known as Liya, in the Portuguese-language dubbing of the series Kimba the White Lion. Other notable dubbing work includes the character Crystal Mace in The Space Angel and Lieutenant Atlanta Shore in Stingray.

Medeiros also worked extensively on Portuguese-language dubs of live-action series. She was part of the dubbing cast for the first two seasons of Star Trek, providing the first voice for both Janice Rand and the Enterprise computer. Her other series work included Bewitched, I Dream of Jeannie, Lost in Space, Voyage to the Bottom of the Sea, The Time Tunnel, Mission: Impossible, and The Twilight Zone. In film, her dubbing credits include roles in Quo Vadis, The Last Time I Saw Paris, and The Sad Sack. There are no widely known reports of her having recurring professional collaborations with specific directors or fellow voice actors beyond her work at various studios. No further information about notable achievements, awards, or later career developments is available.