Niemirów [ɲɛˈmiruf] is a settlement in the administrative district of Gmina Rejowiec, within Chełm County, Lublin Voivodeship, in eastern Poland. It lies approximately 11 kilometres (7 mi) north-east of Rejowiec, 11 km (7 mi) west of Chełm, and 54 km (34 mi) east of the regional capital Lublin.

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