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Worldwide, Niinistö (Niinistö ) is an extremely rare unknown gender forename. Much more prevalently, Niinistö is the last name as well as the forename.
Ari, Lauri, Jonni, Jorma, Jussi, Jukka, Jyrki, Touko, Hanna, Virva, Virpi, Venla, Wille, Markus, Kaarlo, Jaakko, Joonas, Tuomas, Eevamaija, Susanna, Pekka, Kaisa, Kalle, Antti, Mari, Mika, Sari, Sami, Satu, Anna, Annu, Aila, Kati, Pauliina, Juha, Heli, Marko, Matti, Milla, Minna, Mikko, Sanna, Sauli, Saara, Essi, and Eeva-Maija