Niemi is a Finnish word meaning "peninsula". It may refer to:
Niemi (surname) Niemi, Lahti, a district of the city of Lahti , part of Orimattila , part of Tampere Niemi, a village in Halsua Niemi, a village in Jokioinen Niemi, a village in the former municipality Sammatti, now part of the city of Lohja
Other uses Niemi, a novel by Juha Hurme which was awarded the Finlandia Prize in 2017