Pentti Hakkarainen may refer to one of the following:
*
Pentti Ensio Hakkarainen
Pentti E. Hakkarainen (1944 – June 1, 2021) was a Lithuanian educational psychologist of Finnish origin.
Education and career
He graduated from the University of Jyväskylä in 1967, where he went on to obtain a master's degree and then a Ph. ...
, educational psychologist of Finnish origin
* , Finnish banker
{{Human name disambiguation, Hakkarainen, Pentti