Niemirki [ɲɛˈmirki] is a village in the administrative district of Gmina Jabłonna Lacka, within Sokołów County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) south-east of Jabłonna Lacka, 17 km (11 mi) north-east of Sokołów Podlaski, and 104 km (65 mi) east of Warsaw.

The locale's designation derives from the Slavic given name Niemir.