Igor Zelenay (Slovak pronunciation: [ˈiɡɔr ˈzelenaj]; born 10 February 1982) is a Slovak former professional tennis player who was a doubles specialist.

He reached a career-high ranking of world No.

Zelanay has won one ATP Tour title and finished runner-up at four other ATP tournaments.

Zelenay announced his retirement in December 2024.

[1] Zelenay reached his first ATP doubles final at the 2010 Delray Beach International Tennis Championships, where he and his partner Philipp Marx lost in straight sets to the Bryan brothers.