Timebomb is the fourth studio album by German heavy metal band U.D.O.

The album is considered the band's heaviest following a light approach on Faceless World.

Deaffy was also the author of the English lyrics on the Accept albums, and is a pseudonym for Gaby Hoffmann (maiden name Hauke), manager of Accept and later married to the guitarist Wolf Hoffmann.

Timebomb was the band's last release with Mathias Dieth and Thomas Smuszynski, whom the latter joined Running Wild in 1992.

It was also their last release until 1997's Solid; in the time between, Udo Dirkschneider took part in the Accept reunion.