Piirainen is a Finnish surname. Notable people with the surname include:
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Elisabeth Piirainen (1943–2017), German linguist
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Holly Piirainen (1983–1993), American murder victim
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Jaakko Piirainen (1871–1917), Finnish master carpenter and politician
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Raimo Piirainen (born 1952), Finnish politician
Similar names
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Piironen Piironen is a Finnish surname. Notable people with it include:
* Jukka Piironen (1925–1976), pole vaulter
*Paavo Piironen (1943–1974), film and television actor and director
Similar names
*Piiroinen Piiroinen is a Finnish surname
In Finlan ...
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Piiroinen Piiroinen is a Finnish surname
In Finland, a person must have a surname and at least one given name with up to four given names permitted. Surnames are inherited either patrilineally or matrilineally, while given names are usually chosen by a pers ...
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Finnish-language surnames