Keith Wisniewski (born October 25, 1981) is an American professional mixed martial artist currently competing in the Welterweight division. He has competed for the UFC, IFL, M-1 Global, Ironheart Crown, and BodogFIGHT.

Mixed martial arts career

Ultimate Fighting Championship

Wisniewski made his UFC debut at UFC 56 against Nick Thompson. He lost a unanimous decision.

Post-UFC

Following his release from the UFC, Wisniewski lost four straight fights but then went on a six-fight winning streak that included victories over UFC veterans Pete Spratt and Chris Wilson, leading to him being re-signed with the promotion.

Return to UFC

Wisniewski faced Josh Neer in his UFC return on October 1, 2011, at UFC Live: Cruz vs. Johnson. He lost the fight via TKO (doctor stoppage) at the conclusion of the second round. Wisniewski faced newcomer Chris Clements on April 21, 2012, at UFC 145. He lost the fight via split decision after three back and forth rounds. Wisniewski was slated to face Marcelo Guimares on September 4, 2013, at UFC Fight Night 28. However, Guimaraes pulled out of the bout citing an injury and was replaced by Ivan Jorge. He lost the fight via unanimous decision and was subsequently released from the promotion.

Mixed martial arts record