Istarske Toplice (Croatian: Istarske toplice; Italian: Terme istriane), previously known as Terme Santo Stefano, is a thermal health resort in the central part of Istria, Croatia, in the village of Gradinje. It is located 11 kilometres southwest of town of Buzet, in the canyon part of the Mirna river.

• "Istarske toplice". Istrapedia (in Croatian). Retrieved 18 June 2019.

• Official website (in Croatian, English, German, Italian, and Swedish)
• Istarske toplice (in Croatian)

45°22′45″N 13°53′10″E / 45.37917°N 13.88611°E / 45.37917; 13.88611