Igor Sergeevich Ulanov (Russian: И́горь Серге́евич Ула́нов; born 1 October 1969) is a Russian former professional ice hockey defenceman who played 14 seasons in the National Hockey League (NHL).

He has played for the Jets, Washington Capitals, Chicago Blackhawks, Tampa Bay Lightning, Montreal Canadiens, Edmonton Oilers, New York Rangers and the Florida Panthers, as well as European and American Hockey League clubs.

At the 2002 trade deadline, he was part of a package sent to the Florida Panthers for Pavel Bure.

He was playing for Lokomotiv Yaroslavl of the Russian Super League, until late January 2008.

He then signed with HC Dinamo Minsk of the Kontinental Hockey League.