Vladimir Vladimirovich Matyushenko[a] (born 4 January 1971) is a Belarusian retired mixed martial artist.

A professional from 1997 until 2014, he competed for Bellator MMA, the UFC, Affliction, Jungle Fight, and is the former IFL light heavyweight champion, where he was a member of Ken Yasuda's Tokyo Sabres.

[5] His nickname of "The Janitor" was coined by Dave Schultz as a joke to the U.S. wrestling team after Matyushenko beat members of their formidable squad (including Olympian Kevin Jackson) during a meet in Siberia.

[8] Matyushenko made his professional MMA debut by winning three fights on the same night at IFC 5: Battle in the Bayou.

After his win at UFC 32 Matyushenko was given a title shot against then Light heavyweight champion Tito Ortiz.

Matyushenko defeated Alex Schoenauer by unanimous decision on 3 November 2007,[9][10] becoming the first ever light heavyweight champion in the IFL.

[12] After the financial collapse of the International Fight League, Matyushenko participated at "Affliction: Day of Reckoning" pay-per-view event on 24 January 2009, in Anaheim, California at the Honda Center, and lost to Antônio Rogério Nogueira by TKO in round 2.

[13] He defeated Jason Lambert by unanimous decision at Call to Arms I on 16 May 2009, at Citizen Business Bank Arena in Ontario, California.

Matyushenko was defeated by light heavyweight prospect, Jon Jones on 1 August 2010, in the main event of UFC Live on Versus: 2.

[23] Matyushenko defeated Ferreira via first-round TKO after achieving a mounted position and landing a flurry of punches and elbows.

[28] However, Matyushenko was forced out of the bout after suffering a partially torn Achilles tendon while training, and was replaced by Roger Hollett.