Jukka-Pekka Pietiäinen, born in 1956, is a docent in Finnish history at the University of Helsinki. He has published 15 books in various fields of Finnish history. Pietiäinen has also worked as a non-fiction critic, non-fiction publisher and most recently as executive director of the Finnish Non-fiction Writers' Association. He is currently retired.

His most recent work (2021) is ”Ulkoministerin kujanjuoksu. Rudolf Holsti ja skandaali Genevessä” (Foreign Minister Rudolf Holst’s and the Scandal in Geneva), which focuses on Holst’s activities between 1928-1945.