The 2021 IFSC Paraclimbing World Championships was the 7th edition of its kind.

It was held in Moscow, Russia from 15 to 17 September 2021, alongside the 2021 IFSC Climbing World Championships, it included a total of 13 Lead events for the respective athlete's impairment classification.

Two venues were used during the championships: the Irina Viner-Usmanova Gymnastics Palace and the Athletics and Football Sport Complex "CSKA".

Because of insufficient registrations several competitions had to be merged.

As B3 cannot be merged with any other category, they were instead held as Masters.