Sonnemo Guitars is a Swedish custom guitar workshop based in Vännäs, about 30 km from Umeå. The shop is run by luthier Mattias Sonnemo, who has built guitars full-time since 2013. The focus is on hand-built Stratocaster- and Telecaster-style instruments, organized into three tiers: the Custom Vintage Series, Custom Classic Series, and Custom Master Series.

A signature part of Sonnemo's work is relicing — aging finishes and hardware to replicate the look and feel of heavily played vintage instruments. The shop offers both "Realistic Relic" work meant to convincingly mimic decades of wear and "Effect Relic" finishes treated as more artistic pieces, alongside clean, non-reliced custom builds. Mattias also hand-winds the pickups used in the guitars, and the workshop takes on setup, servicing, and refinishing jobs.

Beyond complete instruments, Sonnemo sells guitar parts, pickups, and reliced bodies and necks through its webshop, positioning itself as a small-batch builder that combines vintage aesthetics with modern construction stability.

Sonnemo has 2 products cataloged on Equipboard, including Solid Body Electric Guitars. Their gear is featured by 1 artist, with the strongest followings in Folk, World, & Country. Notable users include Erik Holmbom.