Marek "The Punisher" Piotrowski (born 14 August 1964) is a Polish retired heavyweight kickboxer and boxer.

He had his first professional fight in Rockford, Illinois in October 1988 against Bob Handegan whom he defeated via knockout in the 4th round.

On 19 August 1989, in his fifth fight on American soil, Piotrowski sent shockwaves through the kickboxing community by outworking the reigning national champion Rick "The Jet" Roufus in a 10th round unanimous decision win.

As a result of his upset victory over Roufus, Piotrowski had his world title shot against the legendary Don "The Dragon" Wilson.

Throughout 1990 and 1991 he fought six more bouts, adding more championships to his collection by defeating Bob 'The Thunder' Thurman to win the K.I.C.K.

His kickboxing record now stood at 29 wins to 0 defeats (19 coming via knockout) and he held four professional world titles.

Piotrowski was not in the best condition for the fight, as ongoing personal problems hampered his preparation and he was defeated, suffering a heavy 2nd-round knockout from a high kick that left him unconscious on the canvas.

In 1992 Piotrowski decided to enter professional boxing, winning his debut against Keith Williams on 8 February by technical knockout in the 4th round.

Despite starting his boxing career, Piotrowski still wanted to recover his lost titles and fought several kickboxing bouts, winning all of them.

Junior Light Heavyweight champion and legendary Dutchman Rob Kaman (also known as 'Mr Low-Kick', 98 wins, 78 K.O.s) for a shot at the I.S.K.A.

Unfortunately for Piotrowski he lost by technical knockout in a very dramatic fight - Kaman's renowned low kicks getting the better of him in the 7th round.

On 22 June 1993 he travelled to Montreal, Canada where he took on future K-1 fighter Michael "The Black Sniper" McDonald.

He finished his kickboxing career with a record of 44 fights, with 42 victories to just 2 defeats and had been an eight-time professional world champion with seven different organizations; W.K.A., I.S.K.A., P.K.C, T.B.C., F.F.K.A, K.I.C.K.