Jazz on a Summer's Day is a 1959 documentary film set at the 1958 Newport Jazz Festival. It was filmed and directed by noted commercial and fashion photographer Bert Stern.

The film mixes images of water and the city with the performers and audience at the festival. It also features scenes of the 1958 America's Cup yacht races. The film is largely without dialog or narration (except for periodic announcements by emcee Willis Conover). Therefore it makes sense to list the groups in the order they appear:

• Jimmy Giuffre 3: Giuffre, Bob Brookmeyer, Jim Hall
• Thelonius Monk Trio: Monk, Henry Grimes, Roy Haynes
• Sonny Stitt and Sal Salvador
• Anita O'Day
• George Shearing
• Dinah Washington
• Gerry Mulligan Quartet: Mulligan, Art Farmer
• Big Maybelle Smith
• Chuck Berry
• Chico Hamilton Quintet
• Louis Armstrong and his All-Stars: Trummy Young , Danny Barcelona
• Armstrong & Jack Teagarden
• Mahalia Jackson

Also appearing are Buck Clayton , Jo Jones and Armando Pareza .

The movie was written by Albert D'Annibale and Arnold Perl . In 1999 the film was deemed "culturally significant" by the United States Library of Congress and selected for preservation in the National Film Registry.