First opening theme (episodes 1 to 13)

"DAYBREAK'S BELL" (released on October 10, 2007)

Vocalist: "L'Arc ~en~Ciel"

First ending theme (episodes 1 to 13)

"罠(trap)" (released on November 14, 2007)

Vocal: "The Back Horn"

Second opening theme (Episodes 14-25)

"ASH LIKE SNOW" (released on February 6, 2008)

Vocal: "The Brilliant Green"

Second ending theme (Episodes 14-25)

"フレンズ" (released on January 30, 2008)

Vocal: "Stephanie"

Interlude (Episode 19, Episode 24)

"LOVE TODAY" (released on March 26, 2008)

Vocalist: "Taja"

Interlude

"FIGHT"

Music: "Kawai Kenji"

Original music collection

"Gundam 00 Original Soundtrack 01" (released on January 10, 2008)

Music: "Kenji Kawai"

"Gundam 00 Original Soundtrack 02" (2008 Released on March 26, 2018)

Music: "Kawai Kenji"