Podhradie (Hungarian: Kővárhely) is a municipalityin the Topoľčany District of the Nitra Region, Slovakia.
Podhradie occupies the site of the early settlement Hornouc, of Hrnovce, thought to have been destroyed by brigands.
At one point gold was mined, coins minted and iron ore smelted.
In the mid-13th century a castle keep was built and became the seat of the Topoľčany estate, which contained 26 villages.
When the Stummer family assumed power of Topoľčany at the end of the 19th century, it began to restore and preserve the castle ruin, which had suffered damages under repeated raids by Turks.