Marjorie Estiano (born March 8, 1982) is a Brazilian popular actress and singer who rose to prominence in 2004 playing Natasha in the Brazilian teen series Malhacao.

Born in Curitiba, Paraná state as Marjorie Dias de Oliveira to Eurandir Lima de Oliveira and Marilene Dias, the second of three siblings, Marjorie Estiano studied Scenic Arts in Paraná. When she finished, she moved to Sao Paulo to improve her acting abilities. There she studied music for two years While studying, she made some TV commercials and played minor plays in theater. After this, she was approved in the TV Globo Actor's Workshop and moved to Rio de Janeiro. Then she signed to join the cast of Malhacao and began acting in minor roles. She won the role of "Natasha" in 2004.
She began sharing the vocals of the band with singer, Gustavo (Guilherme Berenguer). Victor Pozas and Alexandre Castilho started recording demo tapes with Estiano and sending them to record labels. Universal Music was interested, and hired Estiano. After several months in studio, her self-titled debut album was released. The first single, "Voce Sempre Sera" (English: You Will Always Be), which was previously performed in Malhao, hit the top of Brazilian charts, and won the Fausto's The Best Of The Year award for Song Of The Year.