Andy Gill was an English musician and record producer best known as the founding lead guitarist of the influential post-punk band Gang of Four. Born Andrew James Dalrymple Gill on January 1, 1956, in Manchester, England, he became renowned for his angular, jagged guitar style and a distinctive treble-heavy sound that helped define the band's abrasive yet danceable aesthetic. His work on landmark albums such as Entertainment! and Solid Gold, along with hit singles including "At Home He's a Tourist," "Damaged Goods," "Anthrax," "What We All Want," and "I Love a Man in a Uniform," established him as one of the most original guitarists of the post-punk era.

Gill co-founded Gang of Four in 1976, and the band quickly became associated with the Leeds music scene alongside acts such as The Clash and The Fall. His guitar playing was noted for its rhythmic precision and its tight linkage with the drums and bass, a quality that distinguished the group's sound. Unlike many guitarists who favored the warmer tone of valve amplifiers, Gill deliberately chose the coldness and thinness of a Fender Stratocaster played through transistor amps. One critic likened his attack to "metal splintering," a description that captured the aggressive, fractured character of his playing.

In addition to his work with Gang of Four, Gill was a prolific record producer. He produced or co-produced all of the band's albums and also worked with a wide range of artists, including Red Hot Chili Peppers, The Jesus Lizard, The Stranglers, The Futureheads, Michael Hutchence, Killing Joke, Polysics, Fight Like Apes, Therapy?, and The Young Knives. His production work extended his influence well beyond his own band, shaping the sound of numerous alternative and post-punk revival acts.

Gang of Four's legacy grew considerably over the decades, with their debut album Entertainment! frequently cited as a cornerstone of post-punk and an inspiration for generations of bands. Gill remained the constant creative force behind the group through various lineup changes and reunions. He died on February 1, 2020, leaving behind a body of work that continues to be celebrated for its innovation and lasting impact on rock music.