Niemierzyn is a neighbourhood in Szczecin, Poland.
Niemierzyn may also refer to:
Niemierzyn Cemetery, a former cemetery in Szczecin Niemierzyn Valley, a land formation in Szczecin Niemierzyn, Łódź Voivodeship, a village in Łódź Voivodeship, Poland Arkońskie-Niemierzyn, a neighbourhood in Szczecin, Poland