Joonas Kemppainen (born April 7,1988) is a Finnish ice hockey player who currently plays professionally in Finland for Oulun Kärpät of the Liiga.
Joonas Kemppainen (born April 7,1988) is a Finnish ice hockey player who currently plays professionally for the Boston Bruins of the National Hockey League. He most recently played in Finland for Oulun Kärpät of the Liiga.