Knorkator is a German Rock / Metal band from Berlin, formed by Alf Ator and Stumpen in 1994. The band went on hiatus from 2008 to 2011.

The self-proclaimed Deutschlands meiste Band der Welt (Germany’s most band in the world) are notorious for their wild live shows which included dangerous stage acrobatics performed by heavily tattooed singer Stumpen, firing vegetables into the crowd using a modified shredder, hitting people in the front rows with foam clubs, or destroying instruments and TV sets on stage.

In 2000 Knorkator took part in the German preliminary decision for the Eurovision Song Contest with their song Ick wer zun Schwein. They made 4th place.

They founded Tubareckorz in 2001.