Ilkka Pikkarainen (born April 19, 1981) is a Finnish ice hockey right winger who last played for IPK in Mestis.

Most of his career has been spent in the Finnish Liiga, though he also played 31 games in the National Hockey League with the New Jersey Devils during the 2009–10 season.

Pikkarainen began his professional career in the SM-liiga with HIFK at the end of the 2000–01 season.

Pikkarainen came over to North America to play for the Albany River Rats, the Devils' American Hockey League affiliate, starting in the 2003–04 season.

In January 2010, Pikkarainen cleared waivers to play in the KHL for CSKA Moscow after the Devils had decided that he was unable to fully adjust to the NHL style, partially for health reasons.