阿图尔∙贝特比耶夫

Artur Asilbekovich Beterbiev (Chechen: Бетербиев Асильбекан Артур; Russian: Артур Асильбекович Бетербиев; born 21 January 1985) is a Russian and Canadian professional boxer. He is a unified champion in the light-heavyweight division, having held the International Boxing Federation (IBF) title since 2017, the World Boxing Council (WBC) title since 2019, and the World Boxing Organization (WBO) title since 2022. As an amateur, Beterbiev won a silver medal at the 2007 World Championships, gold at the 2008 World Cup and 2009 World Championships, as well as gold at the 2006 and 2010 European Championships, all in the light-heavyweight division. He also reached the quarter-finals of the heavyweight bracket at the 2012 Olympics.

Currently, Beterbiev is ranked as the world best light heavyweight by The Ring, ESPN, and Transnational Boxing Rankings Board (TBRB), and second by BoxRec. He is also ranked as the world's eight best active boxer, pound for pound, by BoxRec, seventh by the TBRB, fifth by The Ring, eight by the Boxing Writers Association of America and seventh by ESPN.

He is particularly known for his exceptional punching power, having won all of his professional fights by knockout or stoppage since debuting in 2013. Currently, he is the only world champion in boxing with a 100% knockout ratio.