Zagnańsk [ˈzaɡnaɲsk] is a village in Kielce County, Świętokrzyskie Voivodeship, in south-central Poland. It is the seat of the gmina (administrative district) called Gmina Zagnańsk. It lies approximately 12 km (7 mi) north of the regional capital Kielce. The village has a population of 1,726.
The Bartek oak tree in the village is almost 686 years old.