Nick Osipczak is a British mixed martial artist fighting out of Team Rough House after training at London Pancrase.

Osipczak rose to the limelight with a string of knockout victories in The Ultimate Fighter: The UK vs. The USA under the tutelage of coach Michael Bisping.

He knocked out Tommy Maguire to earn his spot in the house and then sent Mark Miller crashing to the canvas with a headkick in his second bout. Although he dropped a decision in the semi-final to Damarques Johnson, he was invited back to the final where he submitted the tough Frank Lester.

In his first bout since the show, Osipczak TKOed Matt Riddle after some bad blood had been stirring between the two.