Nicola Virginia Adams is a British former professional boxer who competed from 2017 to 2019. She retired with an undefeated record and held the World Boxing Organization (WBO) female flyweight title in 2019. As an amateur, she became the first female boxer to become an Olympic champion after winning gold at London 2012, and the first double Olympic champion following a second gold medal at Rio 2016, both in the flyweight division. As of 27 May 2016 she was the reigning Olympic, World and European Games champion at flyweight, and won the entire set of amateur championships available to her â Olympic, Commonwealth and European Games' titles, and the World, European and European Union championships.