Melsztyn [ˈmɛlʂtɨn] is a village on the left bank of the Dunajec river in the Lesser Poland Voivodeship, Poland.

The name of the village is a Polonized version of a German word Mehlstein.

The castle stood for hundreds of years, and was burned in 1771, during the Bar Confederation, as Polish rebels fought the Russians here.

Among the owners of Melsztyn were the noble families of Tarnowski, Jordan, Zborowski, Tarło and Lubomirski.

The Melsztyn Castle is a ruin now, with an excellent view of the surrounding area.