Zieleniec Mały [ʑɛˈlɛɲɛt͡s ˈmawɨ] (German: Klein Radzienen; 1938-1945: Klein Hügelwalde) is a village in the administrative district of Gmina Wielbark, within Szczytno County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 12 kilometres (7 mi) north-east of Wielbark, 15 km (9 mi) south-east of Szczytno, and 54 km (34 mi) south-east of the regional capital Olsztyn.

The village has a population of 30.