List of number-one hits of 2021 (Denmark)

This page documents the songs that reached number one on the official Danish singles chart, Tracklisten, in 2021. Tracklisten is compiled by Nielsen Music Control and published by IFPI Denmark. The chart combines sales of physical singles, digital downloads, and streaming. The date listed is the date the chart was officially published, representing sales and streams from the previous week. This list only reflects the number-one songs on the singles chart; there is a separate chart for albums.