Pikkarainen is a Finnish surname. Notable people with the surname include:
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Tommi Pikkarainen (born 1969), Finnish football manager and former player
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Kimmo Pikkarainen (born 1976), Finnish professional ice hockey defenceman
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Ilkka Pikkarainen (born 1981), Finnish ice hockey right winger
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Hannu Pikkarainen (born 1983), Finnish professional ice hockey defenceman
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Emilia Pikkarainen
Emilia Pikkarainen (born 11 October 1992) is a Finnish swimmer. She holds the Finnish record in 50 metres butterfly (26.90), 100 metres butterfly (59.02), 200 metres butterfly (2:10.89), and 200 metres individual medley (2:14. ...
(born 1992), Finnish swimmer
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Juhani Pikkarainen (born 1998), Finnish footballer
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Finnish-language surnames