Gnojno [ˈɡnɔi̯nɔ] is a village in Busko County, Świętokrzyskie Voivodeship, in south-central Poland. It is the seat of the gmina (administrative district) called Gmina Gnojno. It lies approximately 18 kilometres (11 mi) north-east of Busko-Zdrój and 35 km (22 mi) south-east of the regional capital Kielce.