Teemu Hartikainen (born May 3, 1990 in Kuopio, Finland) is a Finnish centre in the Edmonton Oilers organization.
He has played for KalPa Kuopio at its various levels since 2006. In 2008-09 he won the Jarmo Wasama memorial trophy as the SM-Liiga rookie of the year.
Hartikainen played for Finland at the 2008 IIHF World U18 Championships and the 2009 and 2010 World Junior Championships.
On May 15, 2010, he signed a three-year entry-level contract with the Oilers.