Oliver Koletzki (born in Braunschweig on 5 October 1974) is a German dance and house music producer and DJ.

[1] Koletzki rose to international fame with his track "Der Mückenschwarm" (meaning "the mosquito swarm"), which appeared on the Cocoon Recordings label.

[2] Many DJs played his track and thus introduced Koletzki to the charts.

"Der Mückenschwarm" was remixed and covered by artists such as Pig & Dan and Dominik Eulberg, which led to worldwide bookings and further releases, notably on Martin Eyerer's Kling Klong.

Koletzki was chosen as the Best Newcomer 2005 in the reader's poll of Groove Magazine, and "Der Mückenschwarm" was chosen as the Track of the Year 2005 by reader's polls in Groove and in Raveline magazine.