Semantic Spaces is an album by Canadian industrial/electronic music group Delerium in 1994. Guest musicians on the album include Greg Reely and Kristy Thirsk. Semantic Spaces was the first Delerium album to contain actual lyrics. Kristy Thirsk was dubbed "The Voice of Delerium" for providing vocals to "Flowers Become Screens", "Incantation", "Metamorphosis" and "Flatlands".
Both "Flowers Become Screens" and "Incantation" have music videos. The track "Flatlands" was featured on the TV series The Sentinel, in the first season episode "Vow of Silence".