Zyzdrojowy Piecek [zɨzdrɔˈjɔvɨ ˈpjɛt͡sɛk] is a village in the administrative district of Gmina Piecki, within Mrągowo County, Warmian-Masurian Voivodeship, in northern Poland.

It lies approximately 10 kilometres (6 mi) south-west of Piecki, 23 km (14 mi) south of Mrągowo, and 54 km (34 mi) east of the regional capital Olsztyn.