Janochy [jaˈnɔxɨ] is a village in the administrative district of Gmina Troszyn, within Ostrołęka County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) north-west of Troszyn, 10 km (6 mi) east of Ostrołęka, and 105 km (65 mi) north-east of Warsaw.