List of UK Jazz & Blues Albums Chart number ones of 2020

The UK Jazz & Blues Albums Chart is a record chart which ranks the best-selling jazz and blues albums in the United Kingdom. Compiled and published by the Official Charts Company, the data is based on each album's weekly physical sales, digital downloads and streams. In 2020, 52 charts were published with 33 albums at number one. The first number-one album of the year was I Shouldn't Be Telling You This, the second album by actor Jeff Goldblum and his jazz band, the Mildred Snitzer Orchestra. The last number-one album of the year was The Best of Peter Green's Fleetwood Mac by Fleetwood Mac featuring songs from their tenure with guitarist Peter Green.

The most successful album on the UK Jazz & Blues Albums Chart in 2020 was Man of the World: The Anthology 1968–88, a greatest hits album by Peter Green, which topped the chart for six weeks in the second half of the year following Green's death in July 2020. Kind of Blue by Miles Davis was the second most successful, returning to the top of the chart for a total of five weeks throughout the year. Rory Gallagher also spent five weeks at number one during 2020 – three weeks with the live album Check Shirt Wizard: Live in '77, two with the compilation Blues. Seven more albums topped the charts for two weeks each during the year.