Wąsosze [vɔ̃ˈsɔʂɛ] is a village in the administrative district of Gmina Wieczfnia Kościelna, within Mława County, Masovian Voivodeship, in east-central Poland.

[1] It lies approximately 5 kilometres (3 mi) south-east of Wieczfnia Kościelna, 12 km (7 mi) north-east of Mława, and 111 km (69 mi) north of Warsaw.

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