Warren "Chaka Zulu" Stevelmans (born 16 May 1983) is a South African kickboxer, fighting out of Vos Gym in Amsterdam, Netherlands.
He began his career at C-Class level in 2001 and through 2001 to 2005 won a number of C and B-Class fights, culminating in winning his A-Class debut against Arian Vatniki in Maastricht, Netherlands.
Stevelmans lost his next fight against Chris Ngimbi but then went on a winning streak throughout the rest of 2006 and in to the later stages of 2007 where he won his first title, defeating William Diender to claim the N.K.B.B.
Stevelmans performances at domestic level gave him the chance to take his talents on to the world stage as he was invited by K-1 to participate in one of their regional qualifying tournaments at the K-1 MAX Netherlands 2008 held in Utrecht.
He picked up a good victory against Alviar Lima but has struggled against world class opposition, losing fights to the likes of Giorgio Petrosyan, Albert Kraus and Mike Zambidis.