Josh James William Taylor (born 2 January 1991) is a Scottish professional boxer. He is the undisputed light-welterweight champion, having held the WBA (Super), IBF, and Ring magazine titles since 2019 and the WBC and WBO titles after defeating José Ramírez in May 2021. At regional level, he held the Commonwealth light-welterweight title from 2016 to 2017, and as an amateur, he won a silver medal at the 2010 Commonwealth Games and gold at the 2014 edition. He is one of only 6 men to be a unified four belt world champion.
With his win over Ramírez, Taylor became the second Scotsman to be an undisputed champion and the first Brit to do so in the four-belt era. Nicknamed "The Tartan Tornado" for his aggressive style, Taylor's knockout-to-win percentage stands at 72%. As of October 2021, he is ranked as the world's best active light-welterweight by BoxRec and the Transnational Boxing Rankings Board (TBRB), as well as the fifth-best active boxer, pound-for-pound, by The Ring, and sixth by the TBRB and the Boxing Writers Association of America.