Igors Kazanovs (; born September 24, 1963) is a former hurdler. Born in Daugavpils, he represented the Soviet Union and later Latvia. He was a soldier in the Soviet army. In the 110 metres hurdles, he finished fifth in the 1987 World Championship final and sixth in the 1993 World Championship final, having ran his personal best of 13.26 seconds in the semifinals. In the 60 metres hurdles, he won four European Indoor gold medals and was a two-time medallist at the World Indoor Championships. He also competed at two Olympic Games.