Liam Williams (born 26 May 1992) is a Welsh professional boxer. He has challenged once for the WBO interim light-middleweight title in 2017, and once for the WBO middleweight title in 2021. At regional level, he has held multiple championships, including the Commonwealth light-middleweight title from 2014 to 2015; the British light-middleweight title from 2015 to 2016; and the British middleweight title from 2018 to 2020.