Oswald Guitars is a one-person electric guitar building operation run by Dutch luthier Nick Oswald out of a small workshop in Leeuwarden, the Netherlands. The instruments draw heavily from 1950s and 1960s designs, pairing vintage aesthetics with modern construction tweaks aimed at tuning stability and playability.

The lineup centers on three models — the Standard Oswald, the OT (a Telecaster-style instrument), and the OS (an offset-style instrument) — offered as both stock builds and custom orders. Bodies and necks are shaped using a mix of CNC routing and hand work, and the humbucking pickups are wound in-house. Nick also mixes and sprays his own finishes, including aged and relic'd treatments, with a small number of guitars shipped worldwide each year.

Oswald has 2 products cataloged on Equipboard, including Solid Body Electric Guitars. Their gear is featured by 1 artist, with the strongest followings in Rock and Blues. Notable users include Dave Simpson.