List of UK Jazz & Blues Albums Chart number ones of 2004

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 2004, 52 charts were published with ten albums at number one. Jamie Cullum's third studio album Twentysomething was both the first and last number-one album of the year, spending the first week and the last six weeks atop the chart.

The most successful album on the UK Jazz & Blues Albums Chart in 2004 was Feels Like Home, the second studio album by Norah Jones, which spent a total of 24 weeks at number one over two spells of nine and 15 weeks. Jones also spent an additional two weeks at number one with her debut album Come Away with Me in October. Jamie Cullum's Twentysomething spent seven weeks at number one, while Katie Melua's debut studio album Call Off the Search and Ray Charles' final studio album Genius Loves Company each held the number-one spot for five weeks in 2004. Call Off the Search finished 2004 as the fifth best-selling album of the year in the UK.