Savannah Rose Marshall (born 19 May 1991) is a British professional boxer who has held the WBO female middleweight title since October 2020. As an amateur, she became the first British female world champion after securing gold at the 2012 World Championships. She has been nicknamed as the 'Silent Assassin' due to her shyness. As of October 2020, she is ranked as the world's second best active female middleweight by BoxRec and the fifth best active super-middleweight by "The Ring".