Igor Yaroslavovich "Ice Cold" Vovchanchyn (born August 6, 1973) is a retired Ukrainian mixed martial artist. He holds notable wins over Mark Kerr, Yuki Kondo, Gilbert Yvel, Kazushi Sakuraba, Valentijn Overeem, and Gary Goodridge.

In his Pride debut, Vovchanchyn fought Canadian kickboxer and arm-wrestling champion Gary Goodridge. Igor showed a lack of experience in takedown defense and was twice taken down by Goodridge, who was not known for his grappling prowess. After a short period of ground work the fighters returned to the standing phase of combat. Igor, ovbiously behind on points, attacked Goodridge and knocked him out with two left hooks.

He then fought japanese ju-jitsu fighter Akira Shoji. The fight stayed in the standing posistion for most of the two ten-minute rounds, and Vovchanchyn won the judges decision by badly damaging Shoji with strikes.

He then fought Carlos Barreto, a Carlson Gracie team member and Vale Tudo champion. Igor shut down the takedown attempts of Barreto and won the decision by out striking him.

He lost his next fight to Tre Telligman by decision in what turned into a technical kickboxing match.

He was next matched up with American wrestler Mark Kerr "The Smashing Machine" for the unofficial title of #1 heavyweight in the world. Kerr secured several takedows early, but was unable to pass Vovchanchyn's guard or do any significant damage. In the last round Igor pounced on the exhausted Kerr dominating him with strikes. When Kerr shot in for a takedown to avoid the barrage of strikes Vovchanchyn sprawled, leaving Kerr in a four points posistion facing down. Vovchanchyn then knocked Kerr out with a series of knees, but the fight was ruled a no contest because knees to the head of a grounded opponent in the four points posistion were at that time illegal.

In his next fight Igor fought Brazillian Ju-Jitsu master Fransico Bueno, who was fresh off a knockout victory. After a brief feeling out process Igor scored a brilliant one-punch knockout with what become his signature strike: the overhand right rear cross.

Igor was a favorite going in to the Pride Grand Prix. In the openining roud he defeated Japanese pro wrestler Alexander Otsuka easily by decision. His next fight was a rematch with Gary Goodridge, and Igor quickly erased the memory of his lackluster performance in the first fight with a ko that Gary would go on to say was the hardest punch he'd ever felt.

He the faced Japanese hero Kazushi Sakuraba, coming off of the longest fight in recent history in a 90 minute battle with UFC champion Royce Gracie. Igor scored well in the first round but Sakuraba did not return for the next round because of exhaustion.

He then faced another powerhouse American wrestler in Mark Coleman "The Hammer". Coleman took Igor down and was able to injure Vovchanchyn with knees from the north-south posistion, forcing Igor to submit.

Vovchanchyn's next fight was a TKO destruction of Daijiro Matsui. In his next fight Igor Laid the groundwork for the way of defeating the guard later made famous by Fedor Emelianenko.

He fought Enson Inoue,a ju-jitsu fighter from Hawaii. After briefly exchanging punches, the fight went to the ground and Enson attempted to exploite Igor's lack of submissions training, but was instead pounded so badly that he could not return for the second round.