The UK singles chart is a weekly record chart compiled by the Official Charts Company (OCC) on behalf of the British record industry. The chart week runs from Friday to Thursday, with the chart date given as the following Thursday.
Audio streaming data was incorporated into the chart in 2014, with 100 streams equivalent to one sale. In 2017, the OCC introduced an exception for songs that had spent a certain time on the charts and whose consumption had declined, whereby these songs are calculated at a rate of 300 streams equivalent to a sale. Ellie Goulding was the first artist to top the chart in the decade with her cover of Joni Mitchell's song "River".
The following singles have all been number one in the United Kingdom during the 2020s:
Nine artists have at least three number-one singles during the decade.
The following songs spent at least eight weeks at number one during the 2020s.
The following artists have all spent a total of eight or more weeks at the number-one spot during the 2020s.
Eleven record labels have spent ten or more weeks at the top of the UK singles chart during the 2020s.