Petri Mikael Liimatainen (born July 20, 1969, in Hässelby, Sweden) is a former professional ice hockey defenceman.

Liimatainen began his career with AIK IF in Sweden's Elitserien.

In 1995, Liimatainen moved to Germany's Deutsche Eishockey Liga and signed with the Krefeld Pinguine.

He then spent the next three seasons playing in Switzerland for HC Lugano and EHC Basel, Germany for Füchse Duisburg and in Sweden for Linköpings HC as well as a spell in Austria's Erste Bank Eishockey Liga for EHC Black Wings Linz.

In 2009, he signed for the Hvidovre Fighters in Denmark's Metal Ligaen.