Hannu Pikkarainen (born October 13, 1983) is a Finnish professional ice hockey defenceman currently an unrestricted free agent who most recently played for the Iserlohn Roosters of the Deutsche Eishockey Liga (DEL).

[1] Pikkarainen saw action in seven AHL contests and played in eleven games for ECHL's Charlotte Checkers[2] that year before returning to HIFK the following season.

On May 29, 2015, Pikkarainen concluded his third stint with HIFK and signed a one-year deal with German club Schwenninger Wild Wings.

[5] When his contract was up, he agreed to terms with fellow DEL side Iserlohn Roosters inking a deal for the 2016–17 season.

[6] In 41 games with the Roosters, Pikkarainen contributed with 2 goals and 18 points as Iserlohn finished out of playoff contention.