Kevin Walker (18 December 1958 – 26 November 2023), known professionally as Geordie Walker, was an English rock musician, songwriter and producer. He was best known as the guitarist of post-punk group Killing Joke. He joined the band in March 1979; his first recording was released in December of that year. Their debut self-titled album came out in October 1980. Walker recorded 15 studio albums with Killing Joke and also took part in various side-projects. His unorthodox style of electric guitar playing was widely acclaimed.