Sergio Moraes Castanheira Brandão (Sergio M C Brandao) is a Brazilian science communicator, born in Rio de Janeiro, in 1949. He is the International Organiser and Curator of Ver Ciência - International Exhibition of Science on TV, a festival of television programmes about science and technology, which takes place annually in Brazil, since 1994. The main objective of the Ver Ciencia Projectis to promote the dissemination of scientific culture and knowledge through televison.

His career as science communicator began at the BBC World Service, in London, where he worked from 1974 to 1981 as producer, reporter and presenter of radio programs broadcast to Brazil, mainly on science and technology subjects. His career on television began in 1981 at the Globo TV Network, as reporter for prime time programmes such as "Fantástico" and "Globo Reporter". In 1984 he participated in the creation of the first regular science tv program in Brazil "Globo Ciência", which is still being broacast every week by the Globo TV network.

For his dedication to science communication, Sergio M C Brandão has won awards in Brazil and abroad, such as the José Reis Award of Scientific Journalism (1986) given by the Brazilian National Research Council (CNPq), the Primo Rovis Prize (1991) of the Trieste International Foundation for the Progress and Freedom of Sciences, Italy, and two nominations by the Brazilian Academy of Sciences to UNESCO's Kalinga Prize for science communicators.

In 2013, Sergio M C Brandão is involved in the creation of a new free and public webchannel, tvciencia.net, devoted to the spreading of scientific culture and knowledge in the form of TV programmes on different areas of knowledge.