Douglas is a budget-focused guitar and bass brand distributed exclusively in North America by Rondo Music, a family-owned retailer based in Union, New Jersey (with operations historically tied to New Hampshire). The Douglas name dates back to Japanese-made instruments from the early 1960s, but the modern line has been built to Rondo's specifications since around the mid-1980s, with production outsourced to factories in China, Korea, and Taiwan. The brand sits alongside Rondo's other house labels such as SX, Agile, Brice, and Hadean.

The catalog spans Stratocaster- and Telecaster-style electrics, Les Paul- and SG-style solidbodies, semi-hollow models, and a broad range of basses including 4-, 5-, and 6-string variants. Douglas is particularly known in online bass communities for inexpensive extended-range instruments, and for guitars like the Scope 727, a 27-inch-scale 7-string built for lower tunings with either a Floyd Rose tremolo or a tune-o-matic bridge. The WPB, WRL, and Hadron series cover additional bass and guitar shapes.

Douglas occupies the entry-level tier of Rondo's lineup, typically positioned below Agile and Brice in specifications and price. The instruments are most often discussed on forums such as TalkBass and Ultimate Guitar as affordable first instruments, travel or practice guitars, or inexpensive platforms for modding and parts swaps.

Douglas has 9 products cataloged on Equipboard, including Solid Body Electric Guitars, Electric Basses, and Fretless Basses.