Marty Willson-Piper (born 7 May 1958) is an English guitarist and singer-songwriter best known as a former long-time member of the Australian psychedelic rock band The Church. He joined in 1980 after seeing an early gig where they were performing as a three-piece. He was an integral member of the band for 33 years. He was also the guitarist for the English alternative rock band All About Eve from 1991 to 1993 and again from 1999 to 2002. He has also worked with Swedish progressive rock band Anekdoten.