Aion is the fifth studio album by Dead Can Dance, released on 11 June 1990 by 4AD. The first album Lisa Gerrard and Brendan Perry wrote after the end of their romantic partnership, it was recorded in Ireland with the exception of "The Arrival and the Reunion" and "The End of Words", which were recorded at Woodbine Street Recording Studios in Leamington Spa.

The male soprano David Navarro Sust contributed vocals to tracks 1 and 7.

The album cover shows a detail from the Dutch painter Hieronymus Bosch's triptych The Garden of Earthly Delights (specifically, its central "Earth" panel).

On this album, Dead Can Dance explored early music to a greater degree, including medieval music and Renaissance music, as Perry noted, "synonymous with the Bosch period"; this included pieces like the 14th-century Italian dance instrumental ("Saltarello") and 16th-century Catalan ballad ("The Song of the Sibyl"), lyrics from 17th-century Spanish baroque poet Luis de Góngora ("Fortune Presents Gifts Not According to the Book"), and instrumentation such as hurdy-gurdy and viols

Track Listing:
"The Arrival and the Reunion"
"The Song of the Sibyl"
"Fortune Presents Gifts Not According to the Book"
"As the Bell Rings the Maypole Spins"
"The End of Words"
"Black Sun"
"The Promised Womb"
"The Garden of Zephirus"