Sara Fernanda Giromini (born June 18, 1992), known as Sara Winter, is a Brazilian activist and politician. She was the founder of the Brazilian variant of the Femen group, but after the second half of 2013 she worked in her own group, BastardXs. As of 2015, she joined the "Pro-Woman group", at the same time that she started to fight against the agendas she once defended, including the social construction of genders, feminism and the legalization of abortion, defending since then political positions linked to the right and conservatism.