Igor Konstantinovich Kunitsyn (Russian: И́горь Константи́нович Куни́цын, IPA: [ˈiɡərʲ kʊˈnʲitsɨn]; born September 30, 1981) is a retired tennis player from Russia.

The pair met again in the final of the Kremlin Cup, an ATP tournament played in Moscow.

In August 2008, he made the semifinals of the Legg Mason Tennis Classic, beating Mischa Zverev, Fabio Fognini, and Somdev Devvarman, before losing Viktor Troicki.

Heavily favored Russia was hosted by Israel in a Davis Cup quarterfinal tie in July 2009, on indoor hard courts at the Nokia Arena in Tel Aviv.

[3] At the 2009 Indianapolis Tennis Championships in July, Kunistyn was beaten in the second round by 23-year-old American Wayne Odesnik.