GOC Guitars is an American builder of headless electric guitars and basses, founded in 2008 and based in Saint Louis, Missouri. The company specializes in modern, ergonomically focused instruments and is known for multi-scale and extended-range designs, with model lines including the Materia (offered in 6, 7, and 8-string headless configurations), the Endurance, and the Valkyrie. Build options the brand promotes include Micarta fingerboards, custom neck profiles, and a range of finishes.

GOC pitches itself toward progressive and metal players looking for boutique headless instruments outside the more widely known brands in that space. The team behind the company maintains a deliberately low public profile, stating that recognition isn't a goal and that the focus is on the instruments themselves. Coverage in the headless and extended-range guitar community — including write-ups on sites like Truth In Shredding and threads on player forums such as The Gear Forum — has helped build the brand's niche reputation.

GOC Guitars has 2 products cataloged on Equipboard, including Extended Range Guitars and Solid Body Electric Guitars. Their gear is featured by 1 artist, with the strongest followings in Rock and Metal. Notable users include Andrew Baena.