Igor Vladimirovich Denisov (; born 17 May 1984 in Leningrad, now Saint Petersburg) is an association footballer who played midfielder. He currently plays for Zenit Saint Petersburg and represents Russia at international level but he refused to be called up for the provisional 25-man squad of players for the Euro 2008.
Denisov was part of the 2008 UEFA Cup winning team, scoring the first goal in Zenit's 2–0 win over Rangers F.C in the final .