Phallus Dei was the first album by German band Amon Düül II. The Latin title translates into English as "God's Penis". The album was the result of the Amon Düül commune in Munich splitting. The album features layered guitars, abstract percussion, and chant-like vocals. It is often cited (alongside Can's Monster Movie) as the original Krautrock album.
It was first issued on CD in 1988 by the Mantra label, All known copies list the songs in incorrect order on the cover, but present them correctly on the disc itself. It was reissued in 2001, digitally remastered by Eroc, and containing two extra tracks: "Freak Out Requiem (Parts I-IV)" and "Cymbals in the End", both recorded at the same sessions as the original album.
The 2006 re-remastered reissue on the German label, Revisited Records, contains two bonus tracks, TouchMaPhal (10:17) and I Want The Sun to Shine (10:32), both recorded about 15 years after the original album's release. It does not contain the bonus material from the 2001 reissue.