Guitar World is a monthly music magazine for guitarists – and fans of guitar-based music and trends – that has been published since July 1980. Guitar World, the best-selling guitar magazine in the United States, contains original artist interviews and profiles, plus lessons/columns, gear reviews, news and exclusive tablature of three songs per issue. The magazine is published 13 times per year by Future plc. Damian Fanelli has been Guitar World's Editor-in-Chief since June 2018.

A guitarist is a person who plays the guitar. Guitarists may play a variety of guitar family instruments such as classical guitars, acoustic guitars, electric guitars, and bass guitars. Some guitarists accompany themselves on the guitar by singing or playing the harmonica, or both.