Udrzynek
Village
Udrzynek
Coordinates: 52°40′N 21°41′E / 52.667°N 21.683°E / 52.667; 21.683
Country	Poland
Voivodeship	Masovian
County	Wyszków
Gmina	Brańszczyk

Udrzynek [uˈdʐɨnɛk] is a village in the administrative district of Gmina Brańszczyk, within Wyszków County, Masovian Voivodeship, in east-central Poland.^[1] It lies approximately 7 kilometres (4 mi) north-east of Brańszczyk, 18 km (11 mi) north-east of Wyszków, and 69 km (43 mi) north-east of Warsaw.