Michael Knoxville Hettinga (born July 17, 1978) is an American professional wrestler. He is currently wrestling on the independent circuit. He is known for his work in World Wrestling Entertainment under the name Mike Knox. He is also known for his work in Total Nonstop Action Wrestling under the ring name Knux.
Hettinga worked for Ultimate Pro Wrestling (UPW) in 2000. He tagged with Samoa Joe at UPW Proving Ground on December 12, 2000 in the Galaxy Theatre of Santa Ana, California and defeated the debuting Al Katrazz with Basil. He also wrestled at UPW live against the boss Samoa Joe for the Heavyweight Championship, but was unable to win the title.
After being trained by Steve "Navajo Warrior" Islas, Knox started wrestling for Islas' organization Impact Zone Wrestling in 2002. He was booked to win the Heavyweight Championship on two occasions and the Tag Team Championship with friend and rival Derek Neikirk on one occasion.