Flaxwood is a Finnish guitar maker based in Joensuu, founded in 2005 after a research initiative led by industrial designer Heikki Koivurova explored natural fibre-reinforced thermoplastic composites for instrument building. Working with luthier Veijo Rautia, the company developed a patented injection-moulding process that uses a flax-and-resin composite material in place of traditional tonewood. The approach is intended to eliminate the inconsistencies of natural wood grain, producing necks and bodies that resist humidity-related movement and offer uniform tonal characteristics from one instrument to the next.

The brand's catalogue centres on solid-body electric guitars, with the Master Series including models such as the Äijä, Rautia, Liekki, Voima, Laine, and CC Master, alongside the Louhi line and the Forge. Flaxwood also produces aftermarket replacement necks in Telecaster and Stratocaster profiles, sold both as standalone components and as part of their hybrid guitars that pair composite necks with conventional bodies. The company markets its overall tonal signature as 'the Flaxwood sound,' tied to the consistency and stiffness of its composite material.

Flaxwood has 4 products cataloged on Equipboard, including Solid Body Electric Guitars. Their gear is featured by 3 artists, with the strongest followings in Rock, Metal, and Pop. Notable users include Joe Don Rooney, Dave Young, and Axel Ritt.