Jack & Danny (commonly stylized as J&D) is a budget-focused guitar and bass brand owned by the German retailer MUSIC STORE professional, based in Cologne. The instruments are produced in the Far East under a long-running manufacturing partnership and are sold primarily through MUSIC STORE's own retail channels, positioning the line as an affordable alternative to larger entry-level brands.

The catalog spans a wide range of fretted instruments, including ST- and T-style electric guitars, single-cut and double-cut electrics, semi-hollows, short-scale and left-handed models, 4- and 5-string electric basses, acoustic and classical guitars, ukuleles, ukulele basses, and banjos. The lineup leans heavily on familiar vintage shapes and configurations, with model designations such as the ST and TL series and a 7-string electric in the 780 line.

J&D's reputation centers on inexpensive beginner and intermediate instruments rather than signature endorsements or boutique builds, and the brand is most often discussed on European guitar forums as a value-oriented competitor to similarly-positioned house brands like Harley Benton.

Jack & Danny has 9 products cataloged on Equipboard, including Solid Body Electric Guitars, Electric Basses, and Semi-Hollowbody Electric Guitars.