Łomna Las [ˈwɔmna ˈlas] is a village in the administrative district of Gmina Czosnów, within Nowy Dwór County, Masovian Voivodeship, in east-central Poland. It lies approximately 4 kilometres (2 mi) south-east of Czosnów, 11 km (7 mi) south-east of Nowy Dwór Mazowiecki, and 23 km (14 mi) north-west of Warsaw.