Ruins of Stare Selo castle

Stare Selo Castle is a castle in Stare Selo village, Lviv Raion, Lviv Oblast, Ukraine. This castle, or fortress, was built by the princely Ostrogski family.

Its original timber fortifications, first mentioned in 1448, were destroyed by the invading Turks in the late 15th century. A more secure stone fort, intended to defend the Bârlad Road from Lviv to Romania, was built in Stare Selo in the 1580s. Those walls were breached and rendered useless by Khmelnytsky's Cossacks during the Siege of Lviv in 1648.

The existing fortress, almost triangular in shape, with 15-metre high walls and a ceremonial gate on the south side, was commissioned by Prince Władysław Dominik Zasławski, one of the last members of the Ostrogski family.