Simon Philip Raymonde is an English musician and record producer. He is the son of the late arranger and composer Ivor Raymonde. He is best known as the bass guitarist and keyboard player with the Scottish band Cocteau Twins from 1983 to 1997.

Cocteau Twins were a Scottish rock band active from 1979 to 1997. They were formed in Grangemouth by Robin Guthrie and Will Heggie (bass), adding Elizabeth Fraser (vocals) in 1981 and replacing Heggie with multi-instrumentalist Simon Raymonde in 1983. The group earned critical praise for their ethereal, effects-laden sound and the soprano vocals of Fraser, whose lyrics often eschew any recognisable language. Fraser's vocals included unknown words she found in foreign language books, adding to the band's dreamy ambience. They pioneered the 1980s alternative subgenre of dream pop and helped define what would become shoegaze.