Anthony Oluwafemi Olaseni Joshua, OBE (born 15 October 1989) is a British professional boxer who is a two-time unified heavyweight champion, having held the WBA (Super), IBF, WBO, and IBO titles since December 2019 and previously between 2016 and June 2019. At regional level, he held the British and Commonwealth heavyweight titles from 2015 to 2016.

As an amateur, he represented England at the 2011 World Championships in the super-heavyweight division, winning a silver medal; he also represented Great Britain at the 2012 Olympics, winning gold. In 2014, a year after turning professional, he was named Prospect of the Year by The Ring magazine. In 2017, his victorious fight against Wladimir Klitschko was named Fight of the Year by The Ring and the Boxing Writers Association of America. Joshua is the second British boxer, after James DeGale, to win both a gold medal at the Olympics and a world title by a major professional sanctioning body, as well as the first British heavyweight to do so.

As of April 2020, Joshua is ranked as the world's second best active heavyweight by The Ring magazine and Transnational Boxing Rankings Board and third by BoxRec, as well as the sixth best active boxer, pound for pound, by BoxRec. His victories include five world heavyweight champions (Charles Martin, Wladimir Klitschko, Joseph Parker, Alexander Povetkin and Andy Ruiz Jr.) plus 3 non-titleists who were nonetheless ranked in the global heavyweight top ten by BoxRec within a year of him beating them (Dillian Whyte, Carlos Takam and Dominic Breazeale). Joshua's knockout-to-win percentage stands at 91%.