Mariela Castro (b. 1962) is the daughter of Cuban president Raúl Castro and feminist and revolutionary Vilma Espín. She is an important LGBT rights activist in her native country, and serves as the director of the Cuban National Center for Sex Education located in Havana.
Her group actively campaigns for recognition of LGBT human rights, and also for prevention of diseases such as AIDS. Thanks to her efforts, transgender people can receive sex reassignment surgery free of charge in Cuba.