Fernandes Guitars is a guitar and accessory manufacturer, that originated in Japan in 1969, building flamenco guitars. As the company grew it expanded production to include more acoustic guitars, electric guitars, bass guitars, amplifiers, and accessories to become one of the biggest guitar manufacturers in Japan. Fernandes also owns a brand for Gibson replicas: Burny.
Despite its high production figures, Fernandes is better known in the United States for its Sustainer system, which uses electromagnetism to vibrate a string for an extended period, so long as the user continues to fret a note. Unlike the similar manual E-Bow sustainer, the Fernandes Sustainer can be used with a standard plectrum, because the sustainer is imbedded in the body of guitar. Fernandes' custom shop has installed numerous Sustainers into guitars built by other manufacturers.
Fernandes continues to manufacture guitars, that cover the range from inexpensive starter models to custom instruments.
In 2000, Fernandes made a guitar to promote the video game UmJammer Lammy, similar to Lammy's guitars.
- Brad Gillis of American rock band Night Ranger and former Ozzy Osbourne guitarist had his own Stratocaster-type model that was red with a black pick guard. Gillis still uses his Fernandes guitar as his main guitar when he performs in concert with Night Ranger.
- Billie Joe Armstrong of American punk rock band Green Day had a Stratocaster since he was 10 named "Blue" from his mother, and has played it live for nearly every show he has played, near exclusively used for all songs in Eb tuning.
- The Edge of U2 has started using a Sustainer to play With or Without You when playing live. 
- Heath of Japanese heavy metal band X Japan uses his signature Fernandes model FJB-115H bass guitar almost exclusively. Previously he used several Burny guitars, including his signature model DB-85H.
- hide of Japanese heavy metal band X Japan used Fernandes guitars almost exclusively. He has numerous signature models with the company.
- Hidehiko Hoshino of Japanese rock band Buck-Tick uses Fernandes guitars almost exclusively. He has had several signature models with the company.
- Hisashi Imai of Japanese rock band Buck-Tick uses Fernandes guitars almost exclusively. He has several signature models with the company.
- Tomoyasu Hotei of Boøwy and solo fame was one of the leading Japanese artists to front Fernandes in the mid-80s onwards, launching several versions of the TEJ model guitar.
- You of Japanese hard rock band Dead End has his own signature model with Fernandes.
- Steve Hackett, formally of Genesis and GTR, has used Burny guitars with sustainer units (one black and one gold) since his 1999 Darktown album. They have since replaced his previous stock Les Paul guitars as his electric guitar of choice for every album and live show since then. 
- Tony Campos of Fear Factory, Asesino, formally of Static-X and Soulfly, has his own signature model Tremor 5 Deluxe and Tremor 5X.
- Dave Kushner of Velvet Revolver, Wasted Youth, and DKFXP uses Fernandes Ravelle Signature guitar.
- Kasper Eistrup of Kashmir, Danish Band, has used a Fernandes Telecaster with a Fernandes Sustainer kit for several years, and has since acquired another black Fernandes Telecaster, as well.
- Kirk Hammett of Metallica used a Fernandes Stratocaster, semingly an EMG equipped FST-135 nicknamed "Edna", for clean parts on some of the early Metallica albums such as Ride the Lightning as well as live on early tours. He also used a red 1985 STJ-70.