Unrein (German for "Impure") is the fifth studio album by German Industrial metal band Oomph!. It is their first album released on Virgin Schallplatten.

1. Mutters Schoß (Mother's Lap) (01:12)
2. Unsere Rettung (Our Salvation) (05:04)
3. Die Maske (The Mask) (06:06)
4. My Hell (05:19)
5. Gekreuzigt (Crucified) (04:22)
6. Zero Endorphine (03:06) (instrumental)
7. Willst du mein Leben entern? (Do You Want to Board My Life?) (04:20)
8. (Why I'll Never Be) Clean Again (05:28)
9. Unrein (Impure) (05:51)
10. Anniversary (04:51)
11. Foil (04:31)
12. Bastard (06:51)
13. Another Disease (05:30)
14. Meine Wunden (My Wounds) (07:15)

2019 Napalm Records re-release bonus tracks

• 15. This Time (4:36)
• 16. Monolith (4:20) (instrumental)

• Produced by Oomph!
• Music composed by Oomph!
• Lyrics written by Dero Goi

Oomph!

• Dero Goi – lead vocals, drums
• Andreas Crap – lead guitar, sampler
• Robert Flux – rhythm guitar, bass, keyboards

Additional personnel

• Next Level – Photography
• Jor Jenka – Photography, Artwork
• Lennart Nillson – Cover Photo
• Mathias Bothor – Additional Photography

• Oomph! - Unrein at Discogs