Deviser is a Chinese musical instrument brand owned by Guangzhou Huayi Musical Instruments Co., Ltd., a company established in 2012 in Guangzhou, Guangdong Province. Alongside sister brands Caravan Music and Oriental Cherry, Deviser produces acoustic, classical, and electric guitars, as well as ukuleles, violins, and accessories such as amplifiers, cables, and picks.

The company operates as both a house brand and an OEM manufacturer, exporting instruments to more than 100 countries across Asia, Europe, and the Americas. In 2019 its production moved to the Guizhou Guitar Industrial Park, where Deviser's lineup is built — including dreadnought and cutaway acoustics (often with spruce tops), electro-acoustic models, and soprano through tenor ukuleles. The brand is most visible in the budget and mid-tier beginner-to-intermediate segment, sold largely through international wholesale channels and distributors rather than a direct retail presence.

Deviser has 3 products cataloged on Equipboard, including Steel-string Acoustic Guitars, Acoustic-Electric Guitars, and Solid Body Electric Guitars. Their gear is featured by 1 artist, with the strongest followings in Rock. Notable users include Warisul Rawan.