Rosângela Lula da Silva, commonly known by her nickname Janja, is the First Lady of Brazil as the wife of president Luiz Inácio Lula da Silva. Previously, she was an assistant to the Director-General and coordinator of sustainable development programs at hydroelectric dam Itaipu Binacional, and a communications and institutional affairs advisor at electric utilities company Eletrobras.

First Lady of Brazil is a title given to the hostess of Alvorada Palace. The position is traditionally filled by the wife of the current President of Brazil, but may apply to women who are not the president's wives, for instance, when the president is single or widowed. They do not have official functions within the government, but usually attend public ceremonies and organize social actions such as charity events. In addition, a charismatic first lady can help convey a positive image of her spouses to the population.