Regiel Warmian-Masurian Voivodeship
 Regiel [ˈrɛɡʲɛl] (German: Regeln) is a village in the administrative district of Gmina Ełk within Ełk County Warmian-Masurian Voivodeship in northern Poland. It lies approximately 7 kilometres (4 mi) south-east of Ełk and 128 km (80 mi) east of the regional capital Olsztyn.Before 1945 the area was part of Germany (East Prussia).