Helmut Josef Geier, professionally known as DJ Hell (born September 6, 1962 in Altenmarkt an der Alz, Bavaria, DE), is a German house / techno DJ. He is the label boss of International DeeJay Gigolo Records and has been responsible for many of the big records to come out of the electroclash that emerged in Berlin in the mid-nineties. He is seen as the musical initiator of the 80's revival movement later known as electroclash popularizing the music from his hometown Munich from the mid to late 90's.

In 2006, DJ Hell was involved in a German Intel promotional campaign involving five demogroups (Andromeda Software Development, Conspiracy, Fairlight, Farbrausch and mfx), who were set out to create 30-second demos using remixed versions of a DJ Hell track.