Dzierzążnia [d͡ʑɛˈʐɔ̃ʐɲa] is a village in Płońsk County, Masovian Voivodeship, in east-central Poland.

It is the seat of the gmina (administrative district) called Gmina Dzierzążnia.

[1] It lies approximately 11 kilometres (7 mi) west of Płońsk and 70 km (43 mi) north-west of Warsaw.

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