Dilma Vana Rousseff is a Brazilian economist and politician who served as the 36th president of Brazil, holding the position from 2011 until her impeachment and removal from office on 31 August 2016. She is the first woman to have held the Brazilian presidency and had previously served as chief of staff to former president Luiz Inácio Lula da Silva from 2005 to 2010. She has been chair of the New Development Bank since March 2023.