Sokograd, also known as Pliva or Plivski grad, Pliva-Soko, Sokol-grad, Soko-grad, or simply Soko or Sokol, is a medieval fortress with a castle town in the Pliva river valley, between Gerzovo and nearby Šipovo, in Šipovo municipality, Republika Srpska entity of Bosnia and Herzegovina.

It was a very important fortress for the medieval Bosnian state, and the center of the župa Pliva (at the time also called Pljeva).

It was built in a canyon on a steep slope high above the river Sokočnica, which flows into Pliva in Šipovo.

During his attack on Bosnia, King Lajos I of Anjou tried to capture it in July 1363 but was prevented from doing so by the heroic defense of the city and they withdrew after three days of fighting.

[3] Knez Vukac, on these merits, received the Sokograd with entire župa of Pliva from Ban Tvrtko, and was bestowed with a title of duke.

One of the last stages in the development of the fort was the construction of a tower on the other side of the Sokocnica canyon , which protected Sokograd from artillery attacks in the west.

On the ramparts of the fort can be seen three layers of construction and development of the city, which characterize the state in which the fortress was located.