Swan Songs B-Sides is an EP by Hollywood Undead, that was released on June 23, 2009, and consists of 4 B-side songs that were recorded during the sessions of the album Swan Songs but didn't make the album.

These four tracks were previously available as bonus tracks on different editions of the album. "The Loss" was released on the Indie Store edition of the album, and "The Natives" was released on the Smartpunk edition, while both "Pain" and "Knife Called Lust" were released on UK and Japanese editions of the albums, while "Pain" was also available on the iTunes edition.

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