Jaqueline Mourão is a cyclist and a ski racer and a biathlete who has competed for Brazil.
She competed at the 2004, 2008, and 2020 Summer Olympics and the 2006, 2010, 2014, 2018, and 2022 Winter Olympic Games. She was the first female Brazilian athlete to compete at both the Summer Olympics and the Winter Olympics, and she was only the fifthathlete to compete in three different sports. She was the Brazilian flag bearer during the closing ceremony of Vancouver 2010 and the opening ceremony of Sochi 2014, and also carried the flag with Edson Luques Bindilatti during the opening ceremony of Beijing 2022.