Rainbow Dome Musick is the fifth studio album by Steve Hillage, released by Virgin Records in April 1979.

It is a departure from his previous albums, consisting of two long ambient songs recorded in collaboration with his long-time partner Miquette Giraudy.

In his book The Music's All that Matters: A History of Progressive Rock, Paul Stump commented that "it was perhaps Hillage's most spiritually saturated work, 1979's Rainbow Dome Musick, which ensured his place in rock history some ten years after the event.

... its celestial, looping synthesizers and glissando guitar provided as hypnotic and mesmerizing a multi-track experience as any heard in Progressive, or indeed in rock at that point.

"[1] A retrospective review by Mike DeGagne in Allmusic asserted that the album puts Hillage's varied musical background to strong use in both of the pieces, creating "a relaxing and pleasantly divergent journey through a sorted spectrum of instruments".