Ozalj Castle (Croatian: Stari grad Ozalj or Gradina Ozalj) is a castle in the town of Ozalj, Croatia.

The Ozalj fortress, located on the stone cliff perched above the Kupa River, is one of the best-known fortifications of this type in Croatia. It is a very old stronghold (first mentioned in 1244) that has been converted into a castle. The popularity of this castle is because this was the joint castle of the Croatian noble families of Frankopan and Zrinski. In fact, it was the scene of the ill-fated Zrinski–Frankopan conspiracy, which significantly marked the history of Croatia. In the castle there is a museum and a library, and it is in a relatively good state of repair.

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  Entrance to the castle.
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  Castle from across Kupa river.
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  Renovated castle wing and inner courtyard

Media related to Ozalj Castle at Wikimedia Commons

• Frankopan
• Zrinski
• Zrinski–Frankopan conspiracy

• Buljan, Josip (10 July 2020). "Stari grad Ozalj". Hrvatski vojnik (in Croatian). No. 608. ISSN 1333-9036. Retrieved 22 July 2020.