List of UK Jazz & Blues Albums Chart number ones of 1998

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 1998, 52 charts were published with 13 albums at number one. The first number-one album of the year was Kenny G's second greatest hits album Greatest Hits, which topped the first two charts of January. The last number-one album of the year was the Global Television various artists compilation The Very Best of Jazz After Dark, which was number one for four weeks.

The most successful album on the UK Jazz & Blues Albums Chart in 1998 was Blue for You: The Very Best of Nina Simone by Nina Simone, which spent a total of 15 weeks at number one across two spells. Blues on the Bayou by B. B. King was the second most successful single-artist album, spending three weeks at number one. Many of the rest of the published charts during 1998 were topped by various artists compilations, including The Very Best of Latin Jazz (12 weeks), The Very Best of Jazz After Dark (five weeks), and The Very Best of Jazz Moods (four weeks). Blue for You: The Very Best of Nina Simone finished 1998 as the 148th best-selling album of the year in the UK.