Rosa Lúcia Benedetti Magalhães (born January 8, 1947 in Rio de Janeiro) is a Brazilian professor and artist. She is best known as the most successful carnival designer in Rio de Janeiro, with six championships won since 1984, when the Sambadrome Marquês de Sapucaí was built. Designing carnival parades since 1971, Rosa likes telling historic events in her designs, such as the discovery of Brazil (2000), the life and creations of Hans Christian Andersen (2005), Don Quixote (2010), and the corruption scandal that led to the construction of the Versailles Palace in France (2017).
In 2008, Rosa won an Emmy Award for Outstanding Achievement in Costume Design for her work as the artistic director of the Opening Ceremony of the Pan American Games in 2007. In addition, her Carnival designs have been exhibited in the Prague Quadrennial, as well as in Venice Biennale.
Rosa Magalhães is the daughter of writer and academic Raimundo Magalhães Júnior and the playwright Lúcia Benedetti.
Graduated in painting from the School of Fine Arts in Rio de Janeiro and in scenography from the Theater School of Uni-Rio, she worked as a teacher of scenography and garment design in the School of Fine Arts, Federal University of Rio de Janeiro and the Bennett School of Architecture.
In 1971 she began to participate in Rio's carnival by cooperating with the group led by Fernando Pamplona and Arlindo Rodrigues, which worked in the samba school Salgueiro and had as its members Mary Augusta, Lycia Lacerda and Joaozinho Trinta among others. Later, Rosa designed costumes for Beija-flor and then worked for Portela, where, paired with Lycia Lacerda, she created costumes and floats for scenarios developed by Hiram Araújo.