The XVIII International Chopin Piano Competition was held from 2 to 23 October 2021 in Warsaw. Originally scheduled for 2020, the quinquennial competition was twice postponed due to the COVID-19 pandemic.

The International Chopin Piano Competition, often referred to as the Chopin Competition, is a piano competition held in Warsaw, Poland. It was initiated in 1927 and has been held every five years since 1955. It is one of the few competitions devoted entirely to the works of a single composer, in this case, Frédéric Chopin. The competition is currently organized by the Fryderyk Chopin Institute.