The 2021 Men's Rugby League World Cup was the 16th Rugby League World Cup, and one of three major tournaments of the 2021 Rugby League World Cup. The tournament was held in England from 15 October 2022 to 19 November 2022. It was originally due to be held between 23 October 2021 and 27 November 2021, but the COVID-19 pandemic and the subsequent withdrawals of Australia and New Zealand caused the tournament to be postponed. 16 teams competed in the tournament, an increase of two from the previous two tournaments and the first to feature 16 teams since the 2000 Rugby League World Cup.

The 2017 Rugby League World Cup was the fifteenth staging of the Rugby League World Cup tournament and took place in Australia, New Zealand and Papua New Guinea between 27 October and 2 December 2017. The tournament featured the national teams of 14 Rugby League International Federation member countries who qualified through either standing in the previous tournament or a series of qualification play-off matches. In the final, defending champions Australia, playing in their 14th consecutive final, defeated England at Brisbane's Lang Park.