Wiartel Mały [ˈvjartɛl ˈmawɨ] (German: Klein Wiartel) is a village in the administrative district of Gmina Pisz, within Pisz County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 8 kilometres (5 mi) south-west of Pisz and 83 km (52 mi) east of the regional capital Olsztyn.

The village has a population of 20.