Nienhagen
Nienhagen can refer to:
Nienhagen (Celle)
a municipality in the Celle district, Germany
Nienhagen (Mecklenburg)
a municipality in the Rostock district, Germany
Nienhagen (Moringen)
a former municipality, now part of Moringen, Germany
Nienhagen (Schwanebeck)
a former municipality, now part of Schwanebeck, Germany
Nienhagen (Staufenberg)
a former municipality, now part of Staufenberg, Germany
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