Under the Big Black Sun is the third studio album by American rock band X and was released in 1982. It's arguably their finest record. All 11 songs are exceptional, from both a performance and compositional point of view.

Before the recording of the album, singer Exene Cervenka's sister was killed by a drunk driver, and the band decided to work out their grief in the music, which eventually resulted in two of the album's best tracks: the melodic "Riding With Mary" and the vintage '50s sound of "Come Back to Me".

The record was produced by Ray Manzarek, who is best known as the co-founder of The Doors. The cover art illustration was made by Alfred Harris.

Under The Big Black Sun is available as a limited edition of 1500 individually numbered copies on turquoise coloured vinyl and includes an insert.