Nowe Kiełbonki [ˈnɔvɛ kʲɛu̯ˈbɔnki] is a village in the administrative district of Gmina Piecki, within Mrągowo County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 8 kilometres (5 mi) south of Piecki, 21 km (13 mi) south of Mrągowo, and 56 km (35 mi) east of the regional capital Olsztyn.