The Bedlam in Goliath is the fourth studio album by American progressive rock band the Mars Volta, released on January 29, 2008, on Gold Standard Laboratories and Universal Motown Records.
The album is their first to feature drummer Thomas Pridgen, and the last to include guitarist and sound manipulator Paul Hinojos, wind multi-instrumentalist Adrián Terrazas-González, and keyboardist Isaiah "Ikey" Owens.
The album debuted at No. 3 on the Billboard 200, becoming the band's highest charting release after selling over 54,000 copies in its opening week. As of June 2009 it has sold 153,000 copies in United States. "Wax Simulacra" was released on November 19, 2007, as the album's first single, coupled with a cover version of "Pulled to Bits", originally by Siouxsie and the Banshees. Vinyl editions of the album include a ouija inside the gatefold, claimed to be the band's own take on the board they previously owned. "Wax Simulacra" won at the 51st Grammy Awards for Best Hard Rock Performance.
Having previously contributed the artwork to the 2006 release of Amputechture, Jeff Jordan was again brought in to handle the illustrations for the album, creating 11 original paintings to coincide with the theme of The Bedlam in Goliath, as well as including a piece from his own gallery. The piece used for the cover is entitled "Agadez".