A Crimson Cosmos is the third studio album by the Swedish gothic metal band Lake of Tears.

Its melodic sound with psychedelic influences reappeared in most of the band's later releases.

The song "Lady Rosenred" was released as a single, also in 1997, with "Devil's Diner" and "A Crimson Cosmos" as B-sides.

A video for "Devil's Diner" appeared on the Black Mark DVD Metal by Metal, released in 2003.

In 2005, A Crimson Cosmos was ranked number 347 in Rock Hard magazine's book The 500 Greatest Rock & Metal Albums of All Time.