Guitar Monkey is a German hardware manufacturer based in Dachau, Bavaria, specializing in premium locking tuners and machine heads for guitars and basses. Founded by Michael Bojcic, the company's flagship product is the Monkey Locks line — locking tuners built with an 18:1 gear ratio and a proprietary "Snapping Wheel" clamp that clicks into place and resists loosening. The range covers 6-, 7-, 8-, 9-, 10-, and 12-string guitar sets as well as 4-, 5-, 6-, and 7-string bass configurations.

The brand operates a Custom Shop model where each set is assembled to order, letting players choose housing finishes, button styles, and hardware specs. Buttons are produced in Bavaria from high-performance polyamide, keeping each piece at roughly 1.5 grams, and gold-finished hardware uses 24-karat plating. Alongside tuners, the catalog includes wooden and metal tuner buttons, tremolo springs, bridge saddles, and guitar picks, distributed through the brand's own site and retailers such as Thomann.

Guitar Monkey has 1 product cataloged on Equipboard, including Picks & Pick Holders.