The 2021 IFSC Climbing World Championships was the 17th edition of the competition climbing event. It was held in Moscow, Russia from 16 to 21 September 2021, alongside the 2021 IFSC Paraclimbing World Championships.

The 2019 IFSC Climbing World Championships, the 16th edition, were held in Hachioji, Japan from 11 to 21 August 2019. The championships consisted of lead, speed, bouldering, and combined events. The paraclimbing event was held separately from 16 to 17 July in Briançon, France. The combined event also served as an Olympic qualifying event for the 2020 Summer Olympics.