Siemnocha
Village
Siemnocha
Coordinates: 53°8′N 21°33′E / 53.133°N 21.550°E / 53.133; 21.550
Country	Poland
Voivodeship	Masovian
County	Ostrołęka
Gmina	Lelis

Siemnocha [ɕɛmˈnɔxa] is a village in the administrative district of Gmina Lelis, within Ostrołęka County, Masovian Voivodeship, in east-central Poland.^[1] It lies approximately 6 kilometres (4 mi) south of Lelis, 8 km (5 mi) north of Ostrołęka, and 109 km (68 mi) north of Warsaw.